# NTSB MKC77IA019: Boeing 707, N7508A, St Louis, MO, April 5, 1977

- Type: NTSB incident investigation
- Classification: Incident · Minor injuries · Closed
- Date: April 5, 1977
- Place: St Louis, MO · ST LOUIS, MO
- Location: 38.6273° N, 90.1979° W: Placed by OpenAirDocs: center of St. Louis, MO, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.6273&lon=-90.1979&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor, 51 uninjured
- Status: Completed, report September 9, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 152442
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC77IA019
- Page: https://openairdocs.org/ntsb/MKC77IA019

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
4-0008   77/4/5  NR.ST LOUIS,MO        BOEING 707          CR-  0  0  7  SCHED INTERNATL PASSG SRV AIRLINE TRANSPORT, AGE
        TIME - 0936                    N7508A              PX-  0  0 45                            UNK/NR, UNK/NR TOTAL
                                       DAMAGE-MINOR        OT-  0  0  0                            HOURS, UNK/NR IN TYPE,
                                                                                                   INSTRUMENT RATED.
        CLASSIFIED AS INCIDENT
        NAME OF AIRPORT - ST LOUIS LAMBERT
        OPERATOR - AMERICAN AIRLINES,INC.
        DEPARTURE POINT             INTENDED DESTINATION
         ST LOUIS,MO                  LOS ANGELES,CA
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE TEARAWAY                                          IN FLIGHT: CLIMB TO CRUISE
        PROBABLE CAUSE(S)
           AIRFRAME - WINGS: NACELLES,PODS,PYLONS
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
        REMARKS- #3 PYLON MID-SPAR ATTACHMENT FITTING.PYLON & ENGINE SEPARATED.
```

## Aircraft

- Registration: [N7508A](https://openairdocs.org/deregistered/N7508A-1980-02-06), registration cancelled 1980-02-06, S/N 17635 (OpenAirDocs)
- Reported make and model: BOEING 707
- Registry model: [Boeing 707-123](https://openairdocs.org/model/boeing-707-123) (registry code 138360F) (OpenAirDocs)
- Category: Airplane
- Engines: turbo jet
- Damage: Minor damage
- Airport: St Louis Lambert

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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