# NTSB LAX72IL014: Boeing 747, N748PA, Los Angeles, CA, August 24, 1971

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Closed
- Date: August 24, 1971
- Place: Los Angeles, CA · LOS ANGELES, CA
- Location: 34.0522° N, 118.2437° W: Placed by OpenAirDocs: center of Los Angeles, CA, within about 12 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=34.0522&lon=-118.2437&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 158 uninjured
- Status: Completed, report August 16, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 163667
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX72IL014
- Page: https://openairdocs.org/ntsb/LAX72IL014

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
4-0040  71/8/24    LOS ANGELES,CALIF   BOEING 747          CR-  0  0 12  SCHED DOM PASSG SRV       AIRLINE TRANSPORT, AGE
        TIME - 1831                    N748PA              PX-  0  0146                            UNK/NR, UNK/NR TOTAL
                                       DAMAGE-MINOR        OT-  0  0  0                            HOURS, UNK/NR IN TYPE,
                                                                                                   INSTRUMENT RATED.
        CLASSIFIED AS INCIDENT
        NAME OF AIRPORT - LOS ANGELES INTL
        OPERATOR - PAN AMERICAN WORLD AIRWAYS,INC.
        DEPARTURE POINT             INTENDED DESTINATION
          LOS ANGELES,CALIF           SAN FRANCISCO,CALIF
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: INITIAL CLIMB
           FIRE OR EXPLOSION: IN FLIGHT                             TAKEOFF: INITIAL CLIMB
        PROBABLE CAUSE(S)
           POWERPLANT - COMBUSTION ASSEMBLY: OTHER
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           MISCELLANEOUS ACTS,CONDITIONS - FIRE IN ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING ON AIRPORT/SEAPLANE BASE/HELIPT.
        REMARKS- PS-4 SENSOR ATTACH FITTING WELD FAILED,NR 2 ENG.CAUSED DIFFUSER CASE TO RUPTURE.ENG COWLING SEP.
```

## Aircraft

- Registration: [N748PA](https://openairdocs.org/deregistered/N748PA-1997-05-05), registration cancelled 1997-05-05, S/N 19652 (OpenAirDocs)
- Reported make and model: BOEING 747
- Registry model: [Boeing 747-121](https://openairdocs.org/model/boeing-747-121) (registry code 1384871) (OpenAirDocs)
- Category: Airplane
- Engines: turbo fan
- Damage: Minor damage
- Airport: Los Angeles Intl

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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