# NTSB MKC70IK038: Boeing 720B, N93144, Minneapolis, MN, January 8, 1970

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Closed
- Date: January 8, 1970
- Place: Minneapolis, MN · MINNEAPOLIS, MN
- Location: 44.9800° N, 93.2638° W: Placed by OpenAirDocs: center of Minneapolis, MN, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=44.9800&lon=-93.2638&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 48 uninjured
- Status: Completed, report June 10, 1970
- Report: Brief approved by the director
- NTSB case key (mKey): 138303
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC70IK038
- Page: https://openairdocs.org/ntsb/MKC70IK038

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
4-0003   70/1/8  NR.MINNEAPOLIS,MINN   BOEING 720B         CR-  0  0  7  SCHED DOM PASSG SRV       CERTIFICATE UNKNOWN, AGE
        TIME - 1530                    N93144              PX-  0  0 41                            UNK/NR, UNK/NR TOTAL
                                       DAMAGE-MINOR        OT-  0  0  0                            HOURS, UNK/NR IN TYPE,
                                                                                                   UNK/NR INSTRUMENT RATED.
        CLASSIFIED AS INCIDENT
        OPERATOR - WESTERN AIR LINES,INC.
        DEPARTURE POINT             INTENDED DESTINATION
         MINNEAPOLIS,MINN             DENVER,COLO
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           MISCELLANEOUS                                            IN FLIGHT: CLIMB TO CRUISE
        PROBABLE CAUSE(S)
           AIRFRAME - FUSELAGE: OTHER
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           MISCELLANEOUS ACTS,CONDITIONS - EXPLOSIVE DECOMPRESSION
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING ON AIRPORT
                                  SUSPECTED OR KNOWN AIRCRAFT DAMAGE
        REMARKS- EXPLOSIVE DECOMPRESSION DUE FAILURE IN WALKWAY PRESSURE WEB. LANDED OK.
```

## Aircraft

- Registration: N93144 (not matched to a registry record)
- Reported make and model: BOEING 720B
- 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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