# Accident 19970918029279A: Piper PA18150, Coldfoot, AK, September 18, 1997

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: September 18, 1997, 13:30 local time
- Place: Coldfoot, AK
- Airport: Coldfoot Airport
- Damage: Substantial damage
- Phase of flight: Roll-Out (Fixed Wing)
- Operating rules: General operating rules (Part 91)
- Location: 64.8109° N, 147.7198° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=64.8109&lon=-147.7198&mi=10
- Aircraft: N2355H, registered now (https://openairdocs.org/aircraft/N2355H) (OpenAirDocs)
- Registry model: Piper PA-18-150 (registry code 7101828, https://openairdocs.org/model/piper-pa-18-150) (OpenAirDocs)
- Registry engine: Lycoming 0-320 series (registry code 41508, https://openairdocs.org/engine/lycoming-0-320-series) (OpenAirDocs)
- Reported make and model: PIPER PA18150
- Reported engine: LYC O320B2B
- People aboard: 1
- Fatal injuries: 0
- Pilot flight hours: 1,550 total, 1,100 in this make and model, 97 in the last 90 days
- NTSB investigation: [NTSB ANC97TA152](https://openairdocs.org/ntsb/ANC97TA152) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19970918029279A

## Narrative

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

(.4)THE AIRPLANE HAD JUST RECEIVED A 100-HOUR INSPECTION FROM A CONTRACT MAINTENANCE FACILITY. THE PILOT WAS LANDING THE TUNDRA TIRE, TAILWHEEL-EQUIPPED AIRPLANE ON A GRAVEL RUNWAY.  DURING THE FLIGHT, THE PILOT UTILIZED A SHORT SECTION OF TUBING TO DIRECT HEATER AIR AT HIS FEET.  DURING THE LANDING TOUCHDOWN, THE PILOT DISCOVERED THE BRAKES WERE LOCKED. THE TIRES SKIDDED ON THE GRAVEL SURFACE OF THE RUNWAY AND THE LEFT WING STRUCK THE GROUND. THE PILOT INDICATED THE BRAKES REMAINED LOCKED FOR ABOUT 2 HOURS AFTER THE ACCIDENT.  AT THAT TIME, THE WHEELS TURNED NORMALLY.  THE AIRPLANE UTILIZES A SEPARATE MASTER BRAKE CYLINDER/BRAKE PEDAL ASSEMBLY FOR EACH MAIN WHEEL BRAKE.  THE MASTER CYLINDER/BRAKE PEDALS ARE LOCATED ON THE COCKPIT FLOOR, ADJACENT TO THE RUDDER PEDALS.  THE BRAKE CYLINDERS ARE NORMALLY SERVICED BY ADDING HYDRAULIC BRAKE FLUID THROUGH A SMALL CAP ON THE TOP OF EACH CYLINDER.  MAINTENANCE PERSONNEL FROM THE OPERATOR REPORTED THAT OVERSERVICING OF THE BRAKE CYLINDERS, AND HEATING OF THE CYLINDER ASSEMBLY PRODUCED A LOCKED BRAKE CONDITION.

## 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 ANC97TA152](https://openairdocs.org/ntsb/ANC97TA152), Sep 18, 1997: Piper PA-18 (N2355H), Coldfoot, AK, substantial damage. Probable cause: The overservicing/pressurizing of the hydraulic brake system by maintenance personnel that locked the brake system and prevented directional control.

## Other reports on N2355H (1)

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

- [Accident 20070903020969A](https://openairdocs.org/incident/20070903020969A), Sep 3, 2007: Piper PA18150 (N2355H), Valdez, AK, Substantial damage. (-23) The pilot indicated that he landed on an off airport strip and had experienced an overly bumpy landing roll out. Careful examination of the off airport…

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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