# NTSB ANC81DAG30: Piper PA-22, N9409D, Knik Glacier, AK, February 28, 1981

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: February 28, 1981
- Place: Knik Glacier, AK · KNIK GLACIER, AK
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report April 28, 1981
- Report: Brief approved by the director
- NTSB case key (mKey): 126920
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC81DAG30
- Page: https://openairdocs.org/ntsb/ANC81DAG30

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0522  81/2/28  NR.KNIK GLACIER,AK    PIPER PA-22         CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 17, 74 TOTAL
        TIME - 1500                    N9409D              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  HOURS, 28 IN TYPE, NOT
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - GRAVEL STRIP
        DEPARTURE POINT             INTENDED DESTINATION         LAST ENROUTE STOP
          PALMER,AK                   RETURN                      KNIK GLACIER,AK
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GEAR COLLAPSED                                           TAKEOFF: RUN
           NOSE OVER/DOWN                                           TAKEOFF: RUN
        PROBABLE CAUSE(S)
           AIRFRAME - LANDING GEAR: NOSEWHEEL ASSEMBLIES
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
        REMARKS- PILOT PRACTICING FROM GRAVEL BAR ADJACENT TO KNIK GLACIER.
```

## Aircraft

- Registration: N9409D (not matched to a registry record)
- Reported make and model: PIPER PA-22
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Gravel Strip

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19810228006159A](https://openairdocs.org/incident/19810228006159A), Feb 28, 1981: Piper PA22150, Palmer, AK, Destroyed. Nose gear collapsed on takeoff roll. Airplane nosed over. Found evidence of prior damage to nose gear strut.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.