# NTSB SEA75AS045: Cessna 402A, Seattle, WA, June 15, 1975

- Type: NTSB accident investigation
- Date: June 15, 1975
- Place: Seattle, WA · SEATTLE, WA
- Location: 47.6062° N, 122.3321° W: Placed by OpenAirDocs: center of Seattle, WA, within about 6 miles (OpenAirDocs)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed
- Report: DirectorBrief, August 29, 1975
- NTSB case key (mKey): 149224
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA75AS045
- Page: https://openairdocs.org/ntsb/SEA75AS045

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1938  75/6/15  NR.SEATTLE,WA         CESSNA 402A         CR-  0  0  1  COMMERCIAL                ATP,FLIGHT INSTR., AGE
        TIME - 1815                    N4504Q              PX-  0  0  2  COMMUTER AIR CARRIER      31, 5552 TOTAL HOURS, 580
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0  AIR TAXI-PASSG S-D        IN TYPE, INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          PORT ANGELES,WA             SEATTLE,WA
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           FIRE OR EXPLOSION: IN FLIGHT                             IN FLIGHT: CLIMB TO CRUISE
        PROBABLE CAUSE(S)
           POWERPLANT - EXHAUST SYSTEM: MANIFOLDS
           MISCELLANEOUS ACTS,CONDITIONS - PREVIOUS DAMAGE
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - FIRE IN ENGINE
           MISCELLANEOUS ACTS,CONDITIONS - FIRE IN WING
        REMARKS- EXH MANIFOLD,R ENG,FAILED.PIPE DROPPED DWN ON ENG MOUNT. FIRE DMGD NACELLE & WING. LND OK.
```

## Sequence of events

- Enroute-climb to cruise

## Aircraft

- Registration: N4504Q, a cancelled registration (https://openairdocs.org/deregistered/N4504Q-2017-06-08) (OpenAirDocs)
- Reported make and model: CESSNA 402A
- Registry model: Cessna 402A (registry code 207590M, https://openairdocs.org/model/cessna-402a) (OpenAirDocs)
- Registry engine: Continental IO-520 series (registry code 17032, https://openairdocs.org/engine/continental-io-520-series) (OpenAirDocs)
- Category: Airplane
- Damage: Substantial damage
- FAA reports: 19750615024569A (https://openairdocs.org/incident/19750615024569A) (OpenAirDocs)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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From OpenAirDocs.org, an independent open copy of NTSB and FAA data. The NTSB's own report is the official record of an investigation.