# NTSB FTW71AF078: Douglas DC-9, N1304T, Mcallen, TX, May 22, 1971

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: May 22, 1971
- Place: Mcallen, TX · MCALLEN, TX
- Location: 26.2034° N, 98.2300° W: Placed by OpenAirDocs: center of McAllen, TX, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=26.2034&lon=-98.2300&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 4 minor, 66 uninjured
- Status: Completed, report August 25, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 161238
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW71AF078
- Page: https://openairdocs.org/ntsb/FTW71AF078

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
1-0038  71/5/22  NR.MCALLEN,TEX        DOUGLAS DC-9        CR-  0  0  5  SCHED DOM PASSG SRV       AIRLINE TRANSPORT, AGE
        TIME - 1213                    N1304T              PX-  0  0 65                            49, 22166 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            1970 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        OPERATOR - TEXAS INTERNATIONAL AIRLINES,INC.
        DEPARTURE POINT             INTENDED DESTINATION
         MCALLEN,TEX                  HOUSTON,TEX
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           AIRFRAME FAILURE: IN FLIGHT                              IN FLIGHT: CLIMB TO CRUISE
        PROBABLE CAUSE(S)
           AIRFRAME - FUSELAGE: DOORS,DOOR FRAMES
           SYSTEMS - HYDRAULIC SYSTEM: OTHER
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
           MISCELLANEOUS ACTS,CONDITIONS - EXPLOSIVE DECOMPRESSION
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING ON AIRPORT
                                  DOOR/PANEL OPEN
        REMARKS- MODIFICATION TO ISOLATE MAIN CARGO DOOR HYD SYS FROM MAIN HYD SYS IMPROPER.DOOR OPENED IN FLT.
```

## Aircraft

- Registration: N1304T (not matched to a registry record)
- Reported make and model: DOUGLAS DC-9
- Category: Airplane
- Engines: turbo fan
- Damage: Substantial 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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