# Maintenance/inspections

- Type: NTSB finding section
- Path: [Aircraft](https://openairdocs.org/ntsb-findings/01) › [Aircraft handling/service](https://openairdocs.org/ntsb-findings/0101) › Maintenance/inspections
- NTSB code: 010105
- Cases: 206
- In the probable cause: 148
- Fatal cases: 30
- All cases: https://openairdocs.org/ntsb-findings/010105/cases.md
- Cases with it in the probable cause: https://openairdocs.org/ntsb-findings/010105/cases.md?cause=1
- Page: https://openairdocs.org/ntsb-findings/010105

## Cases per year (in the probable cause / all)

- 2008: 9 / 10
- 2009: 14 / 20
- 2010: 12 / 20
- 2011: 10 / 15
- 2012: 13 / 15
- 2013: 10 / 15
- 2014: 18 / 21
- 2015: 18 / 19
- 2016: 5 / 13
- 2017: 9 / 12
- 2018: 6 / 9
- 2019: 5 / 5
- 2020: 1 / 4
- 2021: 5 / 6
- 2022: 7 / 10
- 2023: 3 / 6
- 2024: 3 / 6

## Findings

- [Maintenance/inspections, general](https://openairdocs.org/ntsb-findings/01010500): 103 cases, 77 in the probable cause
- [Scheduled maint checks](https://openairdocs.org/ntsb-findings/01010520): 76 cases, 56 in the probable cause
- [Time limits](https://openairdocs.org/ntsb-findings/01010510): 17 cases, 6 in the probable cause
- [Return to service](https://openairdocs.org/ntsb-findings/01010530): 14 cases, 11 in the probable cause
- [Unscheduled maint checks](https://openairdocs.org/ntsb-findings/01010550): 6 cases, 5 in the probable cause

## Defining events in these cases

- [Loss of engine power (total)](https://openairdocs.org/ntsb-events/341): 58 cases
- [Loss of engine power (partial)](https://openairdocs.org/ntsb-events/342): 28 cases
- [Sys/Comp malf/fail (non-power)](https://openairdocs.org/ntsb-events/330): 19 cases
- [Powerplant sys/comp malf/fail](https://openairdocs.org/ntsb-events/340): 15 cases
- [Loss of control in flight](https://openairdocs.org/ntsb-events/240): 13 cases
- [Flight control sys malf/fail](https://openairdocs.org/ntsb-events/333): 12 cases
- [Landing gear collapse](https://openairdocs.org/ntsb-events/094): 10 cases
- [Part(s) separation from AC](https://openairdocs.org/ntsb-events/338): 7 cases
- [Fuel starvation](https://openairdocs.org/ntsb-events/191): 6 cases
- [Aircraft structural failure](https://openairdocs.org/ntsb-events/337): 5 cases

## Aircraft models (registry)

- [Piper PA-28-140](https://openairdocs.org/model/piper-pa-28-140): 7 cases
- [Cirrus Design SR22](https://openairdocs.org/model/cirrus-design-sr22): 3 cases
- [Cessna 421B](https://openairdocs.org/model/cessna-421b): 3 cases
- [Robinson Helicopter R44 II](https://openairdocs.org/model/robinson-helicopter-r44-ii): 2 cases
- [Piper PA-34-200](https://openairdocs.org/model/piper-pa-34-200): 2 cases
- [Piper PA-28RT-201](https://openairdocs.org/model/piper-pa-28rt-201): 2 cases
- [Piper PA-28-180](https://openairdocs.org/model/piper-pa-28-180): 2 cases
- [Piper PA-28-181](https://openairdocs.org/model/piper-pa-28-181): 2 cases
- [Piper PA-28-161](https://openairdocs.org/model/piper-pa-28-161): 2 cases
- [Grumman G-164A](https://openairdocs.org/model/grumman-g-164a): 2 cases

## Other findings in the same cases

- [Scheduled/routine maintenance](https://openairdocs.org/ntsb-findings/02062010) (Personnel issues): 35 cases
- [Decision making/judgment](https://openairdocs.org/ntsb-findings/02041520) (Personnel issues): 23 cases
- [Aircraft control](https://openairdocs.org/ntsb-findings/02063040) (Personnel issues): 19 cases
- [Installation](https://openairdocs.org/ntsb-findings/02062035) (Personnel issues): 19 cases
- [Scheduled/routine inspection](https://openairdocs.org/ntsb-findings/02061520) (Personnel issues): 19 cases
- [Fuel](https://openairdocs.org/ntsb-findings/01071010) (Aircraft): 16 cases
- [Recip eng cyl section](https://openairdocs.org/ntsb-findings/01058530) (Aircraft): 15 cases
- [Recip engine power section](https://openairdocs.org/ntsb-findings/01058520) (Aircraft): 13 cases
- [Not determined, general](https://openairdocs.org/ntsb-findings/05000000) (Not determined): 11 cases
- [Engine (reciprocating), general](https://openairdocs.org/ntsb-findings/01058500) (Aircraft): 11 cases

## Newest cases

- [NTSB ERA25LA064](https://openairdocs.org/ntsb/ERA25LA064), Nov 20, 2024: AMS Flight D O O Carat A (N17GF), Centralhatchee, GA, substantial damage. Probable cause: Maintenance personnel’s failure to comply with the engine manufacturer’s guidance, which resulted in improper valvetrain clearances, unseating of the intake valve keepers, and a total loss of engine…
- [NTSB ERA25LA012](https://openairdocs.org/ntsb/ERA25LA012), Oct 11, 2024: Piper PA28 (N5006W), Louisville, KY, substantial damage. Probable cause: A total loss of engine power for undetermined reasons.
- [NTSB CEN25LA013](https://openairdocs.org/ntsb/CEN25LA013), Oct 11, 2024: Rotorway Exec (N314AC), Plymouth, IN, substantial damage. Probable cause: A loss of control due to the failed forward tail rotor belt as a result of the owner’s failure to follow the helicopter manufacturer’s tail rotor belt replacement recommendations.
- [NTSB WPR24LA260](https://openairdocs.org/ntsb/WPR24LA260), Jul 23, 2024: Kitfox Series V (N53562), La Grande, OR, substantial damage. Probable cause: Separation of the propeller blades from progressive damage at the blade roots due to overtightening of the hub bolts.
- [NTSB ERA24FA301](https://openairdocs.org/ntsb/ERA24FA301), Jul 11, 2024: Cessna 402B (N4167G), Aguadilla, PR, destroyed, 1 fatal. Probable cause: The pilot’s decision to operate the airplane with known maintenance discrepancies, which resulted in a total loss of right engine power. Contributing to the outcome was the pilot’s failure to…
- [NTSB CEN24LA315](https://openairdocs.org/ntsb/CEN24LA315), Jul 11, 2024: Grumman American Avn. AA-5B (N23JK), Camdenton, MO, substantial damage. Probable cause: The inadequate maintenance of the seat locking mechanism, which resulted in the pilot’s seat sliding back during takeoff and a subsequent loss of control.
- [NTSB CEN23LA363](https://openairdocs.org/ntsb/CEN23LA363), Aug 15, 2023: Beech C-99 (N261SW), Lansing, MI, substantial damage. Probable cause: The pilot’s failure to properly set the rudder trim position which resulted in a loss of directional control during takeoff. Contributing was the pilot’s inadequate checklist procedures prior to…
- [NTSB CEN23FA314](https://openairdocs.org/ntsb/CEN23FA314), Jul 20, 2023: Piper PA-31P (N200RA), Kearney, MO, destroyed, 1 fatal. Probable cause: The pilot’s decision to operate an airplane with known fuel leaks, his failure to conduct an engine run-up before takeoff, his subsequent failure to abort the takeoff, and the mechanic’s inadequate…
- [NTSB CEN23LA255](https://openairdocs.org/ntsb/CEN23LA255), Jun 22, 2023: Piper PA-25-235 (N7419Z), Westhope, ND, substantial damage. Probable cause: The pilot’s failure to maintain aircraft control that resulted in an impact with terrain after takeoff.
- [NTSB ENG23LA030](https://openairdocs.org/ntsb/ENG23LA030), Jun 17, 2023: Gulfstream Aerospace G-IV (N926TT), Sioux City, IA, incident, minor damage. Probable cause: A No. 2 (right) engine failure due to a spinner fairing separation and subsequent impact with the fan blades that resulted in a midspan fracture of one fan blade. The spinner fairing separated as a…

NTSB has coded findings and defining events since 2008; earlier cases used its older occurrence and cause codes and aren't counted.

Findings: https://openairdocs.org/ntsb-findings.md. Defining events: https://openairdocs.org/ntsb-events.md. Phases of flight: https://openairdocs.org/ntsb-phases.md. Every investigation, filtered by finding, event, phase, state, year or model: https://openairdocs.org/ntsb.md (for example ?state=MI&fatal=1).

NTSB's definitions: Accident and incident, 49 CFR 830.2 (https://www.ecfr.gov/current/title-49/subtitle-B/chapter-VIII/part-830/subpart-A/section-830.2), CICTT occurrence categories (PDF) (https://www.ntsb.gov/safety/data/Documents/datafiles/OccurrenceCategoryDefinitions.pdf), CICTT phases of flight (PDF) (https://www.ntsb.gov/safety/data/Documents/datafiles/PhaseofFlightDefinitions.pdf), and NTSB coding manual, before 2008 (PDF) (https://www.ntsb.gov/GILS/Documents/codman.pdf). NTSB publishes no definitions for its findings, only their names.

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