# NTSB MKC71IK024: Boeing 707, N739TW, Dubuque, IA, October 28, 1970

- Type: NTSB incident investigation
- Classification: Incident · Fatal · Closed
- Date: October 28, 1970
- Place: Dubuque, IA · DUBUQUE, IA
- Location: 42.5006° N, 90.6646° W: Placed by OpenAirDocs: center of Dubuque, IA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.5006&lon=-90.6646&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal, 53 uninjured
- Status: Completed, report May 21, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 158806
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC71IK024
- Page: https://openairdocs.org/ntsb/MKC71IK024

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
4-0074  70/10/28   DUBUQUE,IOWA        BOEING 707          CR-  1  0  6  SCHED DOM PASSG SRV       AIRLINE TRANSPORT, AGE
        TIME - 1425                    N739TW              PX-  0  0 47                            49, 21320 TOTAL HOURS,
                                       DAMAGE-NONE         OT-  0  0  0                            268 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        CLASSIFIED AS INCIDENT
        OPERATOR - TRANS WORLD AIRLINES,INC.
        DEPARTURE POINT             INTENDED DESTINATION
          CHICAGO,ILL                 SAN FRANCISCO,CALIF
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           MISCELLANEOUS                                            IN FLIGHT: CLIMB TO CRUISE
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INCAPACITATION
           MISCELLANEOUS ACTS,CONDITIONS - PILOT SUFFERED HEART ATTACK
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING ON AIRPORT
        REMARKS- CO-PLT LND AT CEDAR RAPIDS,IOWA.
```

## Aircraft

- Registration: [N739TW](https://openairdocs.org/deregistered/N739TW-1972-12-21), registration cancelled 1972-12-21, S/N 17666 (OpenAirDocs)
- Reported make and model: BOEING 707
- Registry model: [Boeing 707-131](https://openairdocs.org/model/boeing-707-131) (registry code 138360N) (OpenAirDocs)
- Category: Airplane
- Engines: turbo jet
- Damage: No 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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