# NTSB OAK77FVM21: Boeing PT-13D, N55520, Morgan Hill, CA, August 9, 1977

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 9, 1977
- Place: Morgan Hill, CA · MORGAN HILL, CA
- Location: 37.1325° N, 121.6419° W: Placed by OpenAirDocs: center of Morgan Hill, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.1325&lon=-121.6419&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report October 17, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 146246
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK77FVM21
- Page: https://openairdocs.org/ntsb/OAK77FVM21

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2173   77/8/9    MORGAN HILL,CA      BOEING PT-13D       CR-  0  0  1  NONCOMMERCIAL             AIRLINE TRANSPORT, AGE
        TIME - 1000                    N55520              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  43, 10275 TOTAL HOURS, 75
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - MORGAN HILL
        DEPARTURE POINT             INTENDED DESTINATION
          MORGAN HILL,CA              LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: INITIAL CLIMB
           COLLIDED WITH: FENCE,FENCEPOSTS                          LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           POWERPLANT - FUEL SYSTEM: RAM AIR ASSEMBLY
           MISCELLANEOUS - FOREIGN MATERIAL AFFECTING NORMAL OPERATIONS
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- CARB AIR RESTRICTION DUE INJESTION OF ASBESTOS  SEALING MATERIAL BROKEN FROM ALTERNATE AIR DUCTING
```

## Aircraft

- Registration: [N55520](https://openairdocs.org/aircraft/N55520), registered now, S/N 75-5520, built 1942 (OpenAirDocs)
- Reported make and model: BOEING PT-13D
- Registry model: [Boeing PT-13D](https://openairdocs.org/model/boeing-pt-13d) (registry code 1380122) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R-985 series](https://openairdocs.org/engine/pratt-whitney-r-985-series) (registry code 52008, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Morgan Hill

## 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 19770809024649A](https://openairdocs.org/incident/19770809024649A), Aug 9, 1977: Boeing PT13D, Morgan Hill, CA, Substantial damage. Carb air restriction due injestion of asbestos sealing material broken from alternate air ducting

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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