- Date
- June 30, 1978
- Place
- Elmira, NY · ELMIRA, NY
- Injuries
- 109 uninjured
- Damage
- No damage
- Phase of flight
- Enroute
- Aircraft
- N9047UBoeing 737
- Status
- Completed · report September 28, 1978
- Report
- Brief approved by the director
- FAA report
- 19780630034489I
- Case key
- 140517
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the incident.
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NTSB brief
NTSB’s brief of the accident, as it was printed: the coded facts, with the probable cause and factors.
---------------------------------------------------------------------------------------------------------------------------- FILE DATE LOCATION AIRCRAFT DATA INJURIES FLIGHT PILOT DATA F S M/N PURPOSE ---------------------------------------------------------------------------------------------------------------------------- 4-0010 78/6/30 NR.ELMIRA,NY BOEING 737 CR- 0 0 6 SCHED DOM PASSG SRV AIRLINE TRANSPORT, AGE TIME - 1928 N9047U PX- 0 0103 UNK/NR, 11564 TOTAL DAMAGE-NONE OT- 0 0 0 HOURS, 799 IN TYPE, INSTRUMENT RATED. CLASSIFIED AS INCIDENT OPERATOR - UNITED AIR LINES,INC. DEPARTURE POINT INTENDED DESTINATION CLEVELAND,OH BOSTON,MA TYPE OF ACCIDENT PHASE OF OPERATION MISCELLANEOUS IN FLIGHT: CLIMB TO CRUISE PROBABLE CAUSE(S) SYSTEMS - HYDRAULIC SYSTEM: HYDRAULIC PUMPS SYSTEMS - HYDRAULIC SYSTEM: SEALS COPILOT - SPONTANEOUS-IMPROPER ACTION PILOT IN COMMAND - FAILED TO FOLLOW APPROVED PROCEDURES,DIRECTIVES,ETC. PILOT IN COMMAND - INADEQUATE SUPERVISION OF FLIGHT MISCELLANEOUS ACTS,CONDITIONS - CREW COORDINATION-POOR REMARKS- LOST A&B HYD SYSTEMS.DIVERT TO IAD.NR 1 ENG A SYS PUMP SHAFT SEAL FAILED.F/O SECURED B SYS PUMPS.
Aircraft
- Registration
- N9047U
- Reported as
- Boeing 737
- Category
- Airplane
- Engine
- turbo fan
- Damage
- No damage
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.