# NTSB UNK67X0143: Porter PC-6A, N285L, Tra Bong, VM, July 28, 1967

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 28, 1967
- Place: Tra Bong, VM · TRA BONG, Vietnam
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report June 10, 1968
- Report: Brief approved by the director
- NTSB case key (mKey): 114838
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=UNK67X0143
- Page: https://openairdocs.org/ntsb/UNK67X0143

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
6-0078  67/7/28    TRA BONG, VIETNAM   PORTER PC-6A        CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 35, 3380
        TIME - 0958                    N285L               PX-  0  0  2  CTR CARGO-D               TOTAL HOURS, 803 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - TRA BONG
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           OVERSHOOT                                                LANDING: LEVEL OFF/TOUCHDOWN
           COLLIDED WITH: DITCHES                                   LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - MISJUDGED DISTANCE AND SPEED
        FACTOR(S)
           PILOT IN COMMAND - MISUSED OR FAILED TO USE FLAPS
        REMARKS- INVESTIGATED AND REPORTED BY GOVT OF VIETNAM.
```

## Aircraft

- Registration: [N285L](https://openairdocs.org/deregistered/N285L-2012-10-18), registration cancelled 2012-10-18, S/N 565, built 1964 (OpenAirDocs)
- Reported make and model: PORTER PC-6A
- Registry model: [Pilatus Porter PC-6/C-H2](https://openairdocs.org/model/pilatus-porter-pc-6-c-h2) (registry code 7090214) (OpenAirDocs)
- Registry engine: [AiResearch 331 SER 605HP](https://openairdocs.org/engine/airesearch-331-ser-605hp) (registry code 01502, turbo-prop) (OpenAirDocs)
- Category: Airplane
- Engines: turbo prop
- Damage: Substantial damage
- Airport: Tra Bong

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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