# NTSB OAK75IP019: Boeing 747, N731, Honolulu, HI, November 17, 1974

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Closed
- Date: November 17, 1974
- Place: Honolulu, HI · HONOLULU, HI
- Location: 21.3069° N, 157.8583° W: Placed by OpenAirDocs: center of Honolulu, HI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=21.3069&lon=-157.8583&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 172 uninjured
- Status: Completed, report February 27, 1975
- Report: Brief approved by the director
- NTSB case key (mKey): 146422
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK75IP019
- Page: https://openairdocs.org/ntsb/OAK75IP019

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
4-0025  74/11/17 NR.HONOLULU,HAWAII    BOEING 747          CR-  0  0 17  SCHED INTERNATL PASSG SRV AIRLINE TRANSPORT, AGE
        TIME - 2355                    N731                PX-  0  0155                            59, 22000 TOTAL HOURS,
                                       DAMAGE-MINOR        OT-  0  0  0                            3000 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        CLASSIFIED AS INCIDENT
        OPERATOR - PAN AMERICAN WORLD AIRWAYS,INC.
        DEPARTURE POINT             INTENDED DESTINATION
         HONOLULU,HAWAII              TOKYO,JAPAN
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           FIRE OR EXPLOSION: IN FLIGHT                             IN FLIGHT: CLIMB TO CRUISE
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: CLIMB TO CRUISE
        PROBABLE CAUSE(S)
           POWERPLANT - COMPRESSOR ASSEMBLY: SEALS,AIR-OIL
           MISCELLANEOUS ACTS,CONDITIONS - EXCESSIVE-WEAR/PLAY
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPER CLEARANCE-TOLERANCE
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - FIRE IN ENGINE
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- FIRE IN NR 3 BEARING CAVITY,PENETRATED TO ACCESS DRIVE GR BOX.5 ESCAPE SLIDES MALFUNCTIONED.
```

## Aircraft

- Registration: [N731](https://openairdocs.org/deregistered/N731-2016-05-12), registration cancelled 2016-05-12, S/N 75045, built 1937 (OpenAirDocs)
- Reported make and model: BOEING 747
- Registry model: [Boeing A75](https://openairdocs.org/model/boeing-a75) (registry code 1380108) (OpenAirDocs)
- Registry engine: [Lycoming R680-4P-B4](https://openairdocs.org/engine/lycoming-r680-4p-b4) (registry code 41542, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: turbo fan
- Damage: Minor damage

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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