# NTSB DEN71ID027: Boeing 747, N740PA, Hill City, KS, December 4, 1970

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Closed
- Date: December 4, 1970
- Place: Hill City, KS · HILL CITY, KS
- Location: 39.3687° N, 99.8405° W: Placed by OpenAirDocs: center of Hill City, KS, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.3687&lon=-99.8405&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 77 uninjured
- Status: Completed, report January 11, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 159496
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN71ID027
- Page: https://openairdocs.org/ntsb/DEN71ID027

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
4-0044   70/12/4 NR.HILL CITY,KANS     BOEING 747          CR-  0  0 17  SCHED DOM PASSG SRV       AIRLINE TRANSPORT, AGE
        TIME - 0900                    N740PA              PX-  0  0 60                            56, 22000 TOTAL HOURS,
                                       DAMAGE-MINOR        OT-  0  0  0                            124 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        CLASSIFIED AS INCIDENT
        OPERATOR - AMERICAN AIRLINES,INC.
        DEPARTURE POINT             INTENDED DESTINATION
          JFK INTL APT,NY             LOS ANGELES,CALIF
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           AIRFRAME FAILURE: IN FLIGHT                              IN FLIGHT: NORMAL CRUISE
        PROBABLE CAUSE(S)
           AIRFRAME - FUSELAGE: WINDSHIELDS,WINDOWS,CANOPIES
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING ON AIRPORT
                                  SUSPECTED OR KNOWN AIRCRAFT DAMAGE
        REMARKS- OUTER LAYER OF PLTS FRONT WINDSHIELD PANEL SEPARATED IN FLT. LND AT DENVER OK.
```

## Aircraft

- Registration: N740PA (not matched to a registry record)
- Reported make and model: BOEING 747
- 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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