# NTSB LAX77IA003: Boeing 737, N4523W, Salt Lake City, UT, October 5, 1976

- Type: NTSB incident investigation
- Classification: Incident · Serious injuries · Closed
- Date: October 5, 1976
- Place: Salt Lake City, UT · SALT LAKE CITY, UT
- Location: 40.7608° N, 111.8910° W: Placed by OpenAirDocs: center of Salt Lake City, UT, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.7608&lon=-111.8910&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious, 2 uninjured
- Status: Completed, report November 10, 1976
- Report: Brief approved by the director
- NTSB case key (mKey): 157098
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX77IA003
- Page: https://openairdocs.org/ntsb/LAX77IA003

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
4-0013   76/10/5 NR.SALT LAKE CITY,UT  BOEING 737          CR-  0  1  2  SCHED DOM PASSG SRV       AIRLINE TRANSPORT, AGE
        TIME - 1015                    N4523W              PX-  0  0  0                            UNK/NR, UNK/NR TOTAL
                                       DAMAGE-NONE         OT-  0  0  0                            HOURS, UNK/NR IN TYPE,
                                                                                                   INSTRUMENT RATED.
        CLASSIFIED AS INCIDENT
        OPERATOR - WESTERN AIR LINES,INC.
        DEPARTURE POINT             INTENDED DESTINATION         LAST ENROUTE STOP
          EDMONTON,CAN               SALT LAKE CITY,UT             GT.FALLS,MT
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           MISCELLANEOUS                                            IN FLIGHT: DESCENDING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INCAPACITATION
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING ON AIRPORT
        REMARKS- PILOT BECAME INCAPACITATED.TOTAL CREW AND PAX NOT REPORTED.
```

## Aircraft

- Registration: [N4523W](https://openairdocs.org/deregistered/N4523W-1980-07-01), registration cancelled 1980-07-01, S/N 20127, built 1969 (OpenAirDocs)
- Reported make and model: BOEING 737
- Registry model: [Boeing 737-247](https://openairdocs.org/model/boeing-737-247) (registry code 138448D) (OpenAirDocs)
- Category: Airplane
- Engines: turbo fan
- 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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.