ANC21LA093 · Piper PA-22-150
Piper PA-22-150 · Accident: flight control system malfunction/failure during takeoff
Event
- NTSB case
- ANC21LA093
- Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
- Accident
- InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
- Completed
- Event fatalities
- Unknown
- Ground fatalities
- Unknown
- OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
- General aviation
- WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
- Visual Meteorological Cond
Piper PA-22-150
- Aircraft type
- Piper PA-22
- Category
- Airplane
- RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
- N8061D
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From not recordedTo not recorded
- Aircraft age
- About 64 years (built 1957)
- Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
- Part 91: General Aviation
- Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
- Takeoff
- Defining eventThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
- Flight control system malfunction/failure
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Substantial
Cause areas
- Aircraft › Fluids/miscellaneous hardware
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The pilot reported that during the takeoff roll, as the airplane became airborne, he heard an “audible pop” and immediately felt slack in the left rudder pedal. The airplane banked to the right, unable to recover from the right turn, he decreased power and added right rudder. Subsequently, he continued in the forced bank to the right and maneuvered the airplane for an emergency off-airport landing. During the emergency landing the tail was dragged sideways, the main landing gear collapsed, and the airplane sustained substantial damage to the elevator.
A postaccident examination revealed that the forward attachment point of the rudder cable that connects to the rudder pedal came unfastened. The pilot reported that the connecting bolt was recovered but that the nut and cotter pin were not located.
Based on the available evidence it was undetermined why the nut disconnected from the bolt.
Probable cause
A separation of the rudder cable from the rudder pedal due to the connecting bolt detaching for undetermined reasons, which resulted in a loss of directional control.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record ANC21LA093
- Event ID
- 20210921103925
- Case number
- ANC21LA093
- Dataset
- full-current
- Source SHA-256
- 5cf380f0061817c0331a6b2d8cc7e0ee3a79bea469a1001dc5c10e56f35f5ab3
Source notes (4)
- Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
- Filled from the NTSB case API where the bulk record had no value: investigation status, cause areas. Values present in the bulk record are kept.
- The date is the local date, which is the same as the UTC date the NTSB stores.
- API snapshot SHA-256: d0525fa7eaeeced02cee978a23ce7ddbd259586e48f07a53f1735b8aa9d89b6a; retrieved 2026-09-16T14:33:50.325Z.