8.2 Inspection Record Entries & Certification Statements (14 CFR 43.11)

Key Takeaways

  • Under 14 CFR § 43.11, an inspection entry must contain the type of inspection, brief description of extent, date of inspection, aircraft Total Time in Service (TTIS), signature, certificate number, kind of certificate held, and the exact prescribed regulatory certification statement.
  • When approving an aircraft for return to service following an inspection, the certifying statement must state verbatim: "I certify that this aircraft has been inspected in accordance with (insert type) inspection and was determined to be in airworthy condition."
  • When an annual inspection reveals unairworthy discrepancies, the IA must enter a disapproval statement in the logbook and deliver a separate signed and dated list of discrepancies and unairworthy items directly to the aircraft owner or lessee.
  • Under 14 CFR § 43.11(a)(5) the disapproval statement reads: "I certify that this aircraft has been inspected in accordance with (insert type) inspection and a list of discrepancies and unairworthy items dated (date) has been provided for the aircraft owner or operator."
  • Total Time in Service (TTIS), defined under 14 CFR § 1.1 as the time from the moment an aircraft leaves the surface of the earth until it touches down at the next point of landing, is legally required in all § 43.11 inspection entries and must never be substituted with raw engine tachometer time.
Last updated: September 2026

8.2 Inspection Record Entries & Certification Statements (14 CFR 43.11)

[!NOTE] Legal Certification Duty: Unlike routine maintenance entries that merely describe tasks performed, an inspection entry under 14 CFR § 43.11 represents a formal legal certification regarding the total airworthiness status of an aircraft or component. An Inspection Authorization (IA) holder performing an annual inspection acts as an official designee evaluating compliance with type certification data, Airworthiness Directives, and operating safety standards. The regulatory wording prescribed by § 43.11 is mandatory and legally binding.

Title 14 of the Code of Federal Regulations § 43.11 sets forth the exact content and wording required for records of inspections conducted under 14 CFR Parts 91, 125, and 135. Whether an inspection is an annual inspection performed by an IA, a 100-hour inspection executed by an appropriately rated A&P mechanic, or a progressive inspection conducted under an FAA-approved schedule, failure to follow the statutory recording format compromises the aircraft's legal operating status. A flawed logbook entry can render an aircraft legally unairworthy even if the physical inspection was performed flawlessly.


Mandatory Content of Inspection Records (14 CFR § 43.11(a))

Under 14 CFR § 43.11(a), any person approving or disapproving an aircraft, airframe, aircraft engine, propeller, appliance, or component part for return to service after any required inspection must make an entry in the maintenance record of that equipment containing the following mandatory information:

  1. Type and Extent of Inspection: The specific type of inspection conducted (such as an Annual Inspection, 100-Hour Inspection, or Progressive Inspection Phase) along with a brief description of the extent of the inspection.
  2. Date and Aircraft Total Time in Service (TTIS): The exact calendar date on which the inspection was completed, and the aircraft's cumulative Total Time in Service (TTIS).
  3. Signature, Certificate Number, and Kind of Certificate: The signature, certificate number, and kind of certificate held by the approving or disapproving person. For an Inspection Authorization holder, the entry must explicitly display the mechanic certificate number followed by the "IA" designation (e.g., "A&P 123456789 IA").
  4. Prescribed Certification Statement: The exact, standardized regulatory statement certifying either the approval or disapproval of the aircraft for return to service.

Verbatim Regulatory Statements: Approval vs. Disapproval

The FAA requires distinct, standardized certification language depending upon whether the inspected article is found airworthy or unairworthy:

1. Statement of Airworthiness Approval (14 CFR § 43.11(a)(4))

If the aircraft or component is determined to be in an airworthy condition, the person certifying the inspection must enter the following exact statement:

"I certify that this aircraft has been inspected in accordance with (insert type) inspection and was determined to be in airworthy condition."

2. Statement of Disapproval for Unairworthy Conditions (14 CFR § 43.11(a)(5))

If the aircraft is inspected and determined to be unairworthy due to outstanding Airworthiness Directives, unapproved alterations, corrosion, structural damage, or mechanical defects, the IA must not approve the aircraft. Instead, the IA must enter the following exact statement in the maintenance records:

"I certify that this aircraft has been inspected in accordance with (insert type) inspection and a list of discrepancies and unairworthy items dated (date) has been provided for the aircraft owner or operator."

Note the two different words the regulation uses, because they are easy to blur: § 43.11(a)(5) says the list "has been provided for the aircraft owner or operator," while § 43.11(b) — the separate paragraph that actually requires the list — says the person performing the inspection "must give the owner or lessee a signed and dated list of those discrepancies." Quote (a)(5) with "owner or operator."


The Discrepancy List Protocol: Procedural and Legal Boundaries

When an annual inspection results in disapproval, the regulatory procedure governing the unairworthy items is one of the most heavily tested areas on the FAA Inspection Authorization examination:

  • Delivery of the Discrepancy List: The IA is legally required to furnish a signed and dated list of discrepancies and unairworthy items directly to the aircraft owner or operator.
  • Logbook Entry Restrictions: The detailed list of defects and unairworthy conditions belongs exclusively on the private discrepancy list delivered to the owner; it must not be transcribed into the permanent aircraft logbook. Recording a lengthy catalog of unairworthy defects in the aircraft logbook defaces the permanent maintenance record and violates proper FAA procedure. The logbook entry must contain only the statutory § 43.11(a)(5) disapproval statement referencing the dated list.
  • No Authority to Ground or Impound: An Inspection Authorization holder is a private certificated technician, not an FAA law enforcement officer. An IA has no legal authority to ground an aircraft, impound logbooks, seize keys, or physically disable an aircraft. If an owner refuses repairs, the IA satisfies their statutory obligation entirely by executing the § 43.11(a)(5) logbook entry and handing the signed discrepancy list to the owner.
  • Rectification of Discrepancies: The owner is under no obligation to employ the inspecting IA to perform the necessary repairs. The owner may hire any appropriately rated A&P mechanic, repair station, or authorized technician to correct the discrepancies. Once the corrective maintenance is completed, each repair is signed off in accordance with 14 CFR § 43.9. The aircraft is then legally airworthy and eligible for flight without requiring a complete re-inspection, provided the original annual inspection was completed within the preceding 12 calendar months.

14 CFR § 43.11 Required Statements Comparison

Inspection StatusMandatory Certification LanguageGoverning ClauseAction Regarding Discrepancies
Approved (Airworthy)"I certify that this aircraft has been inspected in accordance with (type) inspection and was determined to be in airworthy condition."14 CFR § 43.11(a)(4)Sign logbook; aircraft cleared for flight.
Disapproved (Unairworthy)"I certify that this aircraft has been inspected in accordance with (type) inspection and a list of discrepancies and unairworthy items dated (date) has been provided for the aircraft owner or operator."14 CFR § 43.11(a)(5)Sign the record with the disapproval statement; give the signed and dated defect list to the owner or lessee under § 43.11(b).
Progressive Inspection"I certify that in accordance with a progressive inspection program, a routine inspection of (identify whether aircraft or components) and a detailed inspection of (identify components) were performed and the (aircraft or components) are (approved or disapproved) for return to service."14 CFR § 43.11(a)(6)If disapproved, the entry further states that a dated list of discrepancies and unairworthy items has been provided to the owner or operator.

Total Time in Service (TTIS) vs. Tachometer Time

A pervasive compliance error in general aviation maintenance is substituting recording tachometer time or Hobbs meter time for aircraft Total Time in Service:

Statutory Definition of Time in Service (14 CFR § 1.1)

Under 14 CFR § 1.1, the FAA defines time in service with respect to maintenance time records as:

"The time from the moment an aircraft leaves the surface of the earth until it touches it at the next point of landing."

This flight time definition (wheels-off to wheels-on) represents the true chronological operating stress imposed on the airframe, structural fatigue members, and flight controls.

The Tachometer Fallacy

  • Mechanical Recording Flaws: Engine recording tachometers compute "hours" by counting engine crankshaft revolutions, calibrated to record one indicated hour only at a specific cruising RPM (such as 2,300 or 2,500 RPM). During taxi, idle, descent, or circuit training at lower RPM, a recording tachometer registers significantly fewer hours than actual elapsed flight time.
  • Equipment Replacement: Tachometers and Hobbs meters fail frequently and are replaced in service. When a new recording tachometer is installed, its reading begins at 0.0 hours.
  • Regulatory Requirement: Under 14 CFR § 43.11(a)(2), the inspection entry must establish the cumulative airframe Total Time in Service (TTIS). An entry that merely states "Tach: 1,420.5" without citing the total cumulative time in service of the aircraft airframe fails to satisfy federal law. If a tachometer reading is logged, it should be listed alongside the true TTIS (e.g., "Total Time in Service: 3,425.8 hrs; Tachometer Reading: 1,420.5 hrs").

Inspection Authorization Signature and Credential Formatting

Under 14 CFR § 65.91 and § 65.95, an Inspection Authorization is not an independent certificate; it is an authorization granted to a mechanic holding both Airframe and Powerplant ratings. When signing an inspection entry:

  • An IA approving or disapproving an annual inspection must include their base certificate type and number, explicitly followed by the letters IA (e.g., A&P 2847591 IA).
  • If an IA performs a 100-hour inspection, they may sign as a standard mechanic (A&P 2847591) or include the IA notation. However, for an annual inspection, the IA designation is legally mandatory; an entry signed simply as "A&P 2847591" is void as an annual inspection sign-off because a standard mechanic lacks the statutory authority under 14 CFR § 65.85 and § 65.87 to approve an annual inspection.

Progressive Inspection Recordkeeping (14 CFR § 43.11(a)(6))

Progressive inspections get their own certification statement, and it is the only one of the three that combines routine and detailed findings and states approval or disapproval inside the same sentence:

"I certify that in accordance with a progressive inspection program, a routine inspection of (identify whether aircraft or components) and a detailed inspection of (identify components) were performed and the (aircraft or components) are (approved or disapproved) for return to service."

If disapproved, the entry further states "and a list of discrepancies and unairworthy items dated (date) has been provided to the aircraft owner or operator." Note also that § 43.11(a)(4) and (a)(5) both open with "Except for progressive inspections" — the airworthy and disapproval statements simply do not apply to a progressive phase entry.

Aircraft operated under a progressive inspection program also require the following recordkeeping discipline:

  • Each individual phase or cycle entry must specify whether the inspection was a routine inspection (visual and operational checks without major teardown) or a detailed inspection (thorough disassembly and component examination).
  • The entry must cite the specific phase completed (e.g., "Event 2 of 4-event progressive inspection").
  • The cumulative total time in service must be logged at each inspection event.
  • At the conclusion of the complete progressive cycle (typically within 12 calendar months), the IA must execute a comprehensive entry confirming that the entire aircraft has received an inspection equivalent to an annual inspection.

High-Yield Exam Traps & Regulatory Violations

  • Disapproval Logbook Trap: The prescribed § 43.11(a)(5) entry is the reference form — it certifies the inspection and states that a dated list of discrepancies and unairworthy items has been provided for the aircraft owner or operator. The defect catalogue belongs on the separate signed and dated list required by § 43.11(b).
  • Owner or Operator vs. Owner or Lessee: § 43.11(a)(5) uses "owner or operator"; § 43.11(b) uses "owner or lessee." Answer with the words that belong to the paragraph being asked about.
  • Grounding Authority Trap: An IA cannot ground an aircraft or retain maintenance logbooks. If an owner demands their aircraft and records after a disapproval entry, the IA must return all documentation and keys. Operating the unairworthy aircraft is an operational violation by the pilot/owner under 14 CFR § 91.7 and § 91.405, not the IA.
  • Tachometer vs. TTIS Trap: An inspection entry containing only a tachometer reading is legally deficient under 14 CFR § 43.11(a)(2). True Total Time in Service (TTIS) must be calculated and recorded.
  • Annual Inspection Authority Trap: A 100-hour inspection may be approved by any certificated A&P mechanic, but an annual inspection can only be approved or disapproved by an IA, an appropriately rated repair station, or the manufacturer.
Test Your Knowledge

Which of the following statements represents the exact verbatim airworthiness certification required by 14 CFR § 43.11(a)(4) when approving an aircraft for return to service following an annual inspection?

A
B
C
D
Test Your Knowledge

When an Inspection Authorization holder determines that an aircraft is unairworthy during an annual inspection, what is the mandatory regulatory procedure under 14 CFR § 43.11?

A
B
C
D
Test Your Knowledge

Why is recording only engine tachometer time insufficient to satisfy the requirement of 14 CFR § 43.11(a)(2) for an aircraft inspection entry?

A
B
C
D