# Incident 19940208004589I: Boeing 707323C, Dallas-Ft Worth, TX, February 8, 1994

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: February 8, 1994, 23:15 local time
- Place: Dallas-Ft Worth, TX
- Airport: Dallas-Fort Worth International
- Phase of flight: Forced/Precautionary Landing
- Operating rules: Air carrier (Part 121)
- Operator: BUFA
- Location: 32.8972° N, 97.0377° W: Placed by OpenAirDocs at DALLAS-FORT WORTH INTL (DFW), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=32.8972&lon=-97.0377&mi=10
- Aircraft: N8404, a cancelled registration (https://openairdocs.org/deregistered/N8404-1994-06-23) (OpenAirDocs)
- Registry model: Boeing 707-323C (registry code 138367D, https://openairdocs.org/model/boeing-707-323c) (OpenAirDocs)
- Reported make and model: BOEING 707323C
- Reported engine: PWA JT3D3
- People aboard: 3
- Fatal injuries: 0
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19940208004589I

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

NARRATIVE: DURING CLIMBOUT THE NUMBER 2 AND NUMBER 3 ENGINES HYDRAULIC LOW PRESSURE LIGHTS CAME ON AND THE UTILITY SYSTEM QUANTITY WENT TO ZERO. THE CREW PERFORMED THE HYDRAULIC FLUID SHUTOFF PROCEDURE PER THE ABNORMAL PROCEDURES CHECKLIST. THE NUMBER 4 ENGINE FIRE WARNING THEN CAME ON AND THE CREW PERFORMED THE EMERGENCY PROCEDURES TO SHUT DOWN THE ENGINE AND DISCHARGED THE FIRE EXTINGUISHER AGENT TO THE ENGINE. AFTER LANDING THE AIRCRAFT WAS TOWED TO THE RAMP DUE TO LOSS OF NOSE WHEEL STEERING AND NORMAL BRAKE PRESSURE, AND THE UNKNOWN STATUS OF THE NUMBER 4 ENGINE. MAINTENANCE FOUND THE LEADING EDGE FLAP ACTUATOR FLEXIBLE LINE (PART NUMBER BACH8AO4EN0123) JUST OUTBOARD OF NUMBER 4 ENGINE RUPTURED, WHICH CAUSED HYDRAULIC FLUID TO ENTER THE TAILPIPE AREA OF NUMBER 4 ENGINE. THIS RESULTED IN THE FIRE WARNING LIGHT ILLUMINATING. MAINTENANCE REPLACED THE FAILED HYDRAULIC LINE, RESERVICED THE HYDRAULIC SYSTEM, REPLACED THE FIRE EXTINGUISHER BOTTLES, CHECKED THE NUMBER 4 ENGINE FOR DAMAGE AND FOUND NO DAMAGE OR EVIDENCE OF FIRE. AIRCRAFT RETURNED TO SERVICE. THIS INCIDENT IS CLOSED.

## Other reports on N8404 (3)

Matched to the same aircraft by N-number and date.

- [Incident 19920710028389I](https://openairdocs.org/incident/19920710028389I), Jul 10, 1992: Boeing 707323C (N8404), San Antonio, TX. NR3 and NR2 hydraulic pump light on. Shut pumps off. Landed safely. Found leak above NR3 engine pylon firewall.
- [Accident 19910708026509A](https://openairdocs.org/incident/19910708026509A), Jul 8, 1991: Boeing 707323C (N8404), Denver, CO, Substantial damage. Nose wheel strut and inner cylinder departed on takeoff. Damaged underside aircraft. Nut holding cylinder came off.
- [Incident 19870430015319I](https://openairdocs.org/incident/19870430015319I), Apr 30, 1987: Boeing 707323C (N8404), Oklahoma City, OK, Substantial damage. The aircraft taxied into a ground cart. Signalman left position and pilot failed to wait for his return.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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