LAX89LA250
1989-07-27 · THERMAL, California, United States · None · 1 aircraft · Status: Completed
Airport TRM
Current FAA registration · N76RR
- Make / Model
- CESSNA 210
- Year of manufacture
- 1959 · 30 years old at event
- Engine
- CONT MOTOR I0-470 SERIES (260 hp)
- Seats / Engines
- 4 seats · 1 engine
- Last airworthiness date
- 19591231
- ADS-B equipped
- Yes — Mode-S AA40B6
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
A TWISTED NOSE GEAR UPLOCK DUE TO AN ELONGATED BOLT HOLE WHICH PREVENTED THE NOSE GEAR FROM EXTENDING.
Factual narrative
A CESSNA 210 DEPARTED THERMAL, CA FOR A LOCAL FLIGHT TO FUNCTIONALLY CHECK THE LANDING GEAR SYSTEM DUE TO A PREVIOUS PROBLEM. THE GEAR RETRACTED NORMALLY HOWEVER THE NOSE GEAR WOULD NOT EXTEND WHEN THE LANDING GEAR WAS LOWERED. AFTER NUMEROUS ATTEMPTS THE PILOT MADE A SOFT FIELD LANDING WITH THE GEAR RETRACTED. EXAMINATION OF THE NOSE GEAR FOUND THAT THE UPLOCK HAD TWISTED IN PLACE FROM ITS ORIGINAL POSITION DUE TO AN ELONGATED BOLT HOLE FROM PREVIOUS MAINTENANCE. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1989_LAX89LA250.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
Search this event elsewhere
External sources are reported, not agency: signal that something happened, not fact about what happened.
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Related research
Matched on aircraft type or causal vocabulary (maintenance). All research papers
- NASA NTRS 2020 · Technical Memorandum (TM) Evaluation Issues for a Flight Deck Interface; CAST SE-210 Output 2: Report 4 of 6
This report is part of a series of reports that addresses flight deck design and evaluation, written as a response to loss of control accidents.
- Embry-Riddle Scholarly Commons 2026 · Journal article (IJAAA) From Reactive to Predictive: A hybrid Trust-Mediated Adoption Framework for Data-Driven Maintenance in Distributed-Authority Aviation Environments
Modern aviation maintenance operates within increasingly data-intensive technological environments, yet the operational integration of predictive maintenance into routine decision-making remains incon…
- Semantic Scholar 2026 · Article (Reliability Engineering & System Safety) Understanding human error in military aviation maintenance: The role of Performance shaping factors, cognitive workload and error orientation
- Semantic Scholar 2025 · Article (Applied Sciences) Decision-Making Framework for Aviation Safety in Predictive Maintenance Strategies
The implementation of predictive maintenance (PM) in aviation presents unique challenges due to strict safety requirements, complex operational environments, and regulatory constraints.
- Semantic Scholar 2024 · Article (Defence Science Journal) Modelling of Human Factors in Aviation Maintenance Using HFACS ME Human Factors Analysis and Classification System Maintenance Extension and Bayesian Network
Aircraft maintenance is a complex task involving a skilled human workforce, spare parts, and various other resources. Human factors are an inherent element of the human workforce.
- Embry-Riddle Scholarly Commons 2024 · Journal article (JAAER) A New Trajectory in UAV Safety: Leveraging Reinforcement Learning for Distance Maintenance Under Wind Variations
In the field of aviation, safety is a critical cornerstone, and the operation of Unmanned Aerial Vehicle (UAV) systems is deeply connected with this principle.