# NTSB UNK64X0346: Piper PA18, N9116D, Grass Valle, CA, January 25, 1964

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: January 25, 1964
- Place: Grass Valle, CA · GRASS VALLE, CA
- Location: 39.2203° N, 121.0527° W: Placed by OpenAirDocs: center of Grass Valley, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.2203&lon=-121.0527&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Brief approved by the director
- NTSB case key (mKey): 185660
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=UNK64X0346
- Page: https://openairdocs.org/ntsb/UNK64X0346

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0230  64/1/25    GRASS VALLE CALIF   PIPER PA18          CR-  0  0  1  COMMERCIAL                ATP,FLIGHT INSTR., AGE
        TIME - 1300                    N9116D              PX-  0  0  0  POWER/PIPELINE            38, 11500 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            1500 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           NOSE OVER/DOWN                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - SELECTED UNSUITABLE TERRAIN
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           AIRPORTS/AIRWAYS/FACILITIES - AIRPORT CONDITIONS: SNOW ON RUNWAY
        REMARKS- ON LANDING TO PICK UP PASSENGER PLANE NOSED OVERBECAUSE OF TEN OR TWELVE INCHES OF WET SNOW .
```

## Aircraft

- Registration: [N9116D](https://openairdocs.org/aircraft/N9116D), registered now, S/N 18-6495, built 1958 (OpenAirDocs)
- Reported make and model: PIPER PA18
- Registry model: [Piper PA-18A 150](https://openairdocs.org/model/piper-pa-18a-150) (registry code 7101837) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

## Other investigations on N9116D (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 ANC96LA150](https://openairdocs.org/ntsb/ANC96LA150), Sep 8, 1996: Piper PA-18 (N9116D), Palmer, AK, substantial damage. Probable cause: the pilot's improper braking action, which resulted in an inadvertent ground swerve and subsequent damage to the airplane. His excessive airspeed during landing was a related factor.

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.

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