# Accident 19990807011189A: Piper PA18A150, Anaktuvuk Pass, AK, August 7, 1999

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: August 7, 1999, 06:00 local time
- Place: Anaktuvuk Pass, AK
- Damage: Destroyed
- Phase of flight: Low Level Operations
- Operating rules: General operating rules (Part 91)
- Location: 68.1510° N, 151.7106° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=68.1510&lon=-151.7106&mi=10
- Aircraft: N4996V, a cancelled registration (https://openairdocs.org/deregistered/N4996V-2014-11-12) (OpenAirDocs)
- Registry model: Piper PA-18A 150 (registry code 7101837, https://openairdocs.org/model/piper-pa-18a-150) (OpenAirDocs)
- Registry engine: Lycoming 0-320 series (registry code 41508, https://openairdocs.org/engine/lycoming-0-320-series) (OpenAirDocs)
- Reported make and model: PIPER PA18A150
- Reported engine: LYC O320A2B
- People aboard: 2
- Fatal injuries: 2
- Pilot flight hours: 2,850 total, 500 in this make and model, 100 in the last 90 days
- NTSB investigation: [NTSB ANC99FA110](https://openairdocs.org/ntsb/ANC99FA110) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19990807011189A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

ACFT CRASHED UNDER UNKNOWN CIRCUMSTANCES WHILE ENROUTE TO A HUNTING CAMP 20 MILES EAST OF GALBRAITH LAKE, THE WRECKAGE WAS LOCATED INVERTED AND BURNED, THE PILOT/SOLE OCCUPANT SUFFERED FATAL INJURIES, OTHER CIRCUMSTANCES ARE UNKNOWN. (-23)IT APPEARS FROM THE INVESTIGATIONOF THE ACCIDENT SCENE, THAT THE A/C STALLED THEN SPUN INTO THE GROUND WHILE TRYING TO REVERSE COURSE IN A NARROWVALLEY. STATEMENTS FROM AN EMPLOYEE DO NOT INDICATE WEATHER OR OVERLOADING AS FACTORS. THE PILOT HAD EXPERIENCE FLYING IN THIS AREA. ALL CONTROL SURFACES WERE ATTACHED AND FUNCTIONAL. THE ENGINE WAS DEVELOPING POWER ON IMPACT.                                                                          (.4) THE FLIGHT HAD DEPARTED A REMOTE HUNTING CAMP, ABOUT 25 MILES NORTH OF THE ACCIDENT SITE, TO LOCATE SHEEP PRIOR TO DROPPING OFF THE PASSENGER. THE FLIGHT WAS REPORTED OVERDUE TO THE ALASKA STATE TROOPERS, AND AN AERIAL SEARCH LOCATED THE WRECKAGE THE FOLLOWING DAY. VISUAL METEOROLOGICAL CONDITIONS PREVAILED AT THE NEAREST REPORTING STATION, 60 MILES SOUTH OF THE ACCIDENT SITE, AT THE TIME OF THE ACCIDENT. ONE OF THE PILOT'S EMPLOYEES TOLD TH                                                                  E NTSB INVESTIGATOR-IN-CHARGE (IIC) THE WINDS AT CAMP WERE CALM, THERE WERE SOME CLOUDS VISIBLE TO THE SOUTH, AND THE TOPS OF THE MOUNTAINS WERE VISIBLE TOWARD THE ACCIDENT SITE. THE AIRPLANE STRUCK TERRAIN IN A NEAR VERTICAL ATTITUDE, AND CAME TO REST INVERTED IN THE BOTTOM OF A BOX CANYON. THE EMPENNAGE WAS ROTATED AND TWISTED TO THE RIGHT. A POSTCRASH FIRE CONSUMED BOTH FUEL TANKS, AND THE FUSELAGE. POSTACCIDENT EXAMINATION OF THE AIRPLANE AND ENGINE REVEALED NO PREACCIDENT ANOMALIES.

## The NTSB's investigation of this event (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 ANC99FA110](https://openairdocs.org/ntsb/ANC99FA110), Aug 7, 1999: Piper PA-18-150 (N4996V), Anaktuvuk Pass, AK, destroyed, 2 fatal. Probable cause: The inadvertent stall/spin by the pilot. A factor was the box canyon into which he had flown.

## Other reports on N4996V (2)

Matched to the same aircraft by N-number and date.

- [Incident 19940826035909I](https://openairdocs.org/incident/19940826035909I), Aug 26, 1994: Piper PA18A150 (N4996V), Galbraith Lake, AK, Minor damage. Hard landing due high sink rate in gusty wind. Right hydraulic shock absorber failed. Safety cable held.
- [Incident 19890318016539I](https://openairdocs.org/incident/19890318016539I), Mar 18, 1989: Piper PA18A150 (N4996V), Sparrevohn, AK, Minor damage. Ski equipped aircraft hit a mound of snow covered ice on landing collapsing left main gear. No ferry permit.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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