# NTSB OAK78DVD37: Boeing A75N1, N68933, Tracy, CA, May 8, 1978

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: May 8, 1978
- Place: Tracy, CA · TRACY, CA
- Location: 37.7274° N, 121.4522° W: Placed by OpenAirDocs: center of Tracy, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.7274&lon=-121.4522&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report June 8, 1978
- Report: Brief approved by the director
- NTSB case key (mKey): 142411
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK78DVD37
- Page: https://openairdocs.org/ntsb/OAK78DVD37

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0996   78/5/8  NR.TRACY,CA           BOEING A75N1        CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 1030                    N68933              PX-  0  0  0  ASSOC CROP CTL ACTIVITY   AGE 25, 1998 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            365 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          HALEY AG STRIP              MANTECA,CA
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           GEAR COLLAPSED                                           LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           POWERPLANT - FUEL SYSTEM: FUEL INJECTION SYSTEM
           MISCELLANEOUS ACTS,CONDITIONS - OBSTRUCTED
           TERRAIN - ROUGH/UNEVEN
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - UNKNOWN/NOT REPORTED       KIND OF OPERATION - FERRY
          TYPE OF CHEMICAL USED - DRY CHEMICAL-NONTOXIC            PILOT' S SEAT BELT -UNKNOWN/NOT REPORTED
          GLOVES - USED                                            GOGGLES - USED
          CRASH HELMET - AVAILABLE USED                            COCKPIT CRASHPAD - INSTALLED
          CRASH BAR - NOT INSTALLED                                TANK/HOPPER-LOCATION - FORWARD OF PILOT
        REMARKS- MAIN METERING FUEL NOZZLE CLOGGED WITH A MUD-LIKE SUBSTANCE.
```

## Aircraft

- Registration: [N68933](https://openairdocs.org/deregistered/N68933-2013-02-13), registration cancelled 2013-02-13, S/N 75-8574 (OpenAirDocs)
- Reported make and model: BOEING A75N1
- Registry model: [Boeing 75](https://openairdocs.org/model/boeing-75) (registry code 1380104) (OpenAirDocs)
- Registry engine: [Wright 975E&F-2&3](https://openairdocs.org/engine/wright-975e-f-2-3) (registry code 67015, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

## 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 19780508009829A](https://openairdocs.org/incident/19780508009829A), May 8, 1978: Boeing N2S3, Tracy, CA, Substantial damage. Main metering fuel nozzle clogged with a mud-like substance.

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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