# NTSB LAX82IA075: Boeing B737-2H4, N73717, Ontario, CA, February 16, 1982

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Incident investigation · Final report
- Date: February 15, 1982, 21:04 local (Feb 16, 1982, 05:04 UTC)
- Place: Ontario, CA
- Coordinates: 34.02074, -117.580825 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=34.0207&lon=-117.5808&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 119 uninjured
- Status: Completed, report February 15, 1983
- Report: Approved by Office Director
- NTSB case key (mKey): 72093
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX82IA075
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/72093/pdf
- Page: https://openairdocs.org/ntsb/LAX82IA075

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- In flight collision with object, approach - faf/outer marker to threshold (ifr)
  - approach aids,ils glide slope - inoperative (contributing factor)
  - ifr procedure - improper, copilot/second pilot (cause)
  - weather condition - low ceiling (contributing factor)
  - weather condition - fog (contributing factor)
  - weather condition - rain (contributing factor)
  - object - wire,transmission (contributing factor)
  - proper altitude - below, copilot/second pilot (cause)
  - supervision - inadequate, pilot in command (cause)
  - flight advisories - not issued, atc personnel(dep/apch) (contributing factor)
  - facility,inadequate instrument location, atc personnel(dep/apch) (contributing factor)
  - missed approach - performed, pilot in command (contributing factor)
  - landing gear,anti-skid brake system - other (contributing factor)
  - performed, pilot in command (contributing factor)
- Overrun, landing - roll
  - landing gear,normal brake system - failure,total (cause)
  - thrust reverser - failure,total (cause)

## Analysis

BECAUSE THE GLIDE SLOPE HAD BEEN REMOVED FROM SERVICE, AIR CAL FLIGHT 754 WAS VECTORED BY THE ONTARIO TRACON 'N' CONTROLLER FOR A LOCALIZER ONLY APPROACH TO RUNWAY 26L. THE FIRST OFFICER STATED HE DESCENDED TO 1,200 FT AFTER PASSING THE FAF/OM. THE CAPTAIN THEN TOLD HIM TO HOLD HIS ALTITUDE BECAUSE HE WAS IN THE PROCESS OF IDENTIFYING THE LOCATION OF BAKES INTERSECTION(1,500 FT MSL MUST BE MAINTAINED UNTIL PASSING BAKES). SHORTLY AFTER THIS THE AIRCRAFT COLLIDED WITH A POWERLINE ABOUT 3 MILES FROM THE APPROACH END OF 26L AND 1.7 MILES BEFORE REACHING BAKES. THE CREW THEN PERFORMED A MISSED APPROACH AND DIVERTED TO LOS ANGELES INTERNATIONAL WHERE THE AIRCRAFT PROCEEDED TO RUN OFF THE RUNWAY DUE TO LOSS OF EFFECTIVE BRAKING AND REVERSE THRUST. CONTROLLERS HANDLING THE FLIGHT STATED THEY SAW A MINIMUM SAFE ALTITUDE WARNING (MSAW) FOR THE FLIGHT JUST PRIOR TO AIR CAL BUT DID NOT SEE OR HEAR AN ALERT FOR FLIGHT 754. INFORMATION ON THE CONTINUOUS DISC RECORDING SHOWED THAT AN MSAW WAS SOUNDED FOR BOTH AIRCRAFT.

## Aircraft

- Registration: [N73717](https://openairdocs.org/deregistered/N73717-1992-02-14), registration cancelled 1992-02-14, S/N 20345 (OpenAirDocs)
- Reported make and model: BOEING B737-2H4
- Registry model: [Boeing 737-2H4](https://openairdocs.org/model/boeing-737-2h4) (registry code 138448C) (OpenAirDocs)
- Category: Airplane
- Serial number: 20345
- Engines: P&W JT8D-9A 14500 lbs thrust turbo jet
- Damage: Minor damage
- Flight: Part 121
- Operator: Aircal
- Registered owner: Connecticut Bank & Trust Co.
- Departed: OAK, OAKLAND, CA
- Destination: MCCOLLUM, GA
- Flight plan: IFR
- Airport: ONT, Ontario International

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 41; airline transport, flight instructor; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; flight hours: 9,950 total, 2,780 in this make and model, 159 in the last 90 days, 5 in the last 24 hours

## Weather

- Conditions: Instrument (IMC), Night/dark
- Wind: 200° at 7 knots
- Visibility: 2 statute miles
- Temperature: 136 °F
- Altimeter: 30.00 inHg
- Observed at: ONT

## Other investigations on N73717 (1)

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.

- [NTSB OAK79IA034](https://openairdocs.org/ntsb/OAK79IA034), Jul 19, 1979: Boeing 737 (N73717), Fresno, CA, incident, 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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