# NTSB ANC84IA009: Piper PA-12, N4433M, Anchorage, AK, October 19, 1983

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Incident investigation · Final report
- Date: October 18, 1983, 16:07 local (Oct 19, 1983, 00:07 UTC)
- Place: Anchorage, AK
- Coordinates: 61.180919, -149.879028 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=61.1809&lon=-149.8790&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 4241
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC84IA009
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/4241/pdf
- Page: https://openairdocs.org/ntsb/ANC84IA009

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Nose over, landing - roll
  - aircraft handling - improper, pilot in command (cause)

## Analysis

THE PLT REPORTED THE FLOATS HAD JUST BEEN REMOVED FROM THE ACFT & THAT HE MADE THIS FLT TO REFAMILIARIZE HIMSELF WITH FLYING IT WITH WHEELS AGAIN. AFTER MAKING ABOUT 10 TOUCH-GO-GO LANDINGS, THE PLT ELECTED TO MAKE A FULL STOP LANDING. HE REPORTED THAT AFTER LANDING, THE ACFT HAD ROLL APRX 300 FT WITH THE TAIL ON THE GROUND WHEN THE MAIN WHEELS FELT LIKE THEY WERE DIGGING IN THE GRAVEL RWY. HE APPLIED POWER & TRIED TO CORRECT THE SITUATION, BUT THE ACFT CONTINUED TO NOSE OVER. IN HIS ACCIDENT REPORT, THE PLT DID NOT INDICATE TO WHAT EXTENT THAT HE USED BRAKING ACTION. THE ACFT WAS EQUIPPED WITH OVER SIZED TIRES. ANOTHER PLT, WHO LANDED AFTER THE MISHAP, REPORTED THAT THE GRAVEL ON THE RWY AFFECTED HIS ACFT BY CAUSING IT TO VEER SLIGHTLY FROM SIDE TO SIDE.

## Aircraft

- Registration: [N4433M](https://openairdocs.org/aircraft/N4433M), registered now, S/N 12-3386, built 1947 (OpenAirDocs)
- Reported make and model: PIPER PA-12
- Registry model: [Piper PA-12](https://openairdocs.org/model/piper-pa-12) (registry code 7101202) (OpenAirDocs)
- Registry engine: [Lycoming 0-290 series](https://openairdocs.org/engine/lycoming-0-290-series) (registry code 41506, 4 cycle) (OpenAirDocs)
- Category: Airplane
- Serial number: 12-3386
- Airframe hours: 1813
- Engines: LYCOMING O-320A 150 horsepower reciprocating
- Damage: Minor damage
- Flight: Personal, Part 91
- Operator: Daniel I. O'Hoyt
- Registered owner: Daniel I. O'Hoyt
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, August 19, 1983, 8 hours before
- Airport: Z41, Lake Hood, runway 31, 2,200 × 80 ft, gravel

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 29; private; airplane ratings: single-engine sea, single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: center; flight hours: 154 total, 68 in this make and model, 95 as pilot in command, 17 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 350° at 8 knots
- Visibility: 60 statute miles
- Lowest ceiling: none
- Temperature: 46 °F, dew point 52 °F
- Altimeter: 29.00 inHg

## FAA reports on this event (1)

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

- [Incident 19831018067069I](https://openairdocs.org/incident/19831018067069I), Oct 18, 1983: Piper PA12, Anchorage, AK, Minor damage. Nosed up on first landing with wheels after removing floats used the past 6 months.

## Other investigations on N4433M (1)

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.

- [NTSB ERA23LA133](https://openairdocs.org/ntsb/ERA23LA133), Feb 25, 2023: Piper PA-12 (N4433M), Ebeemee Township, ME, substantial damage. Probable cause: A partial power loss of engine power during initial climb for undetermined reasons.

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.