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Safety Recommendation Details

Safety Recommendation A-90-173
Details
Synopsis: ON JULY 19, 1989, AT 1516, A DC-10-10, N1819U, OPERATED BY UNITED AIRLINES (UAL) AS FLIGHT 232, EXPERIENCED A CATASTROPHIC FAILURE OF THE NO. 2 TAIL-MOUNTED ENGINE DURING CRUISE FLIGHT. THE SEPARATION, FRAGMENTATION AND FORCEFUL DISCHARGE OF STAGE 1 FAN ROTOR ASSEMBLY PARTS FROM THE NO. 2 ENGINE LED TO THE LOSS OF THE THREE HYDRAULIC SYSTEMS THAT POWERED THE AIRPLANE'S FLIGHT CONTROLS. THE FLIGHTCREW EXPERIENCED SEVERE DIFFICULTIES CONTROLLING THE AIRPLANE, WHICH SUBSEQUENTLY CRASHED DURING AN ATTEMPTED LANDING AT SIOUX GATEWAY AIRPORT, IOWA. THERE WERE 285 PASSENGERS AND 11 CREWMEMBERS ONBOARD. ONE FLIGHT ATTENDANT AND 110 PASSENGERS WERE FATALLY INJURED.
Recommendation: THE NTSB RECOMMENDS THAT THE FEDERAL AVIATION ADMINISTRATION: ISSUE AN AIR CARRIER OPERATIONS BULLETIN FOR ALL AIR CARRIER FLIGHTCREW TRAINING DEPARTMENTS TO REVIEW THIS ACCIDENT SCENARIO AND REITERATE THE IMPORTANCE OF TIME MANAGEMENT IN THE PREPARATION OF THE CABIN FOR AN IMPENDING EMERGENCY LANDING.
Original recommendation transmittal letter: PDF
Overall Status: Closed - Acceptable Action
Mode: Aviation
Location: SIOUX CITY, IA, United States
Is Reiterated: No
Is Hazmat: No
Is NPRM: No
Accident #: DCA89MA063
Accident Reports: United Airlines Flight 232 McDonnell Douglas DC-10-10‚Äč
Report #: AAR-90-06
Accident Date: 7/19/1989
Issue Date: 12/14/1990
Date Closed: 10/9/1991
Addressee(s) and Addressee Status: FAA (Closed - Acceptable Action)
Keyword(s): Flightcrew, Training and Education

Safety Recommendation History
From: NTSB
To: FAA
Date: 10/9/1991
Response:

From: FAA
To: NTSB
Date: 3/8/1991
Response: THE FAA PLANS TO ISSUE AN AIR CARRIER OPERATIONS BULLETIN (ACOB) TO INFORM AIR CARRIER TRAINING DEPARTMENTS TO REVIEW THE UAL FLIGHT 232 ACCIDENT SCENARIO, TO EVALUATE THEIR EMERGENCY TRAINING PROGRAMS, AND TO STRESS THE IMPORTANCE OF TIME MANAGEMENT IN EMERGENCY CABIN PREPARATION. THE FAA WILL ALSO REQUEST THAT PRINCIPAL OPERATIONS INSPECTORS REVIEW THE CONTENTS OF ACOB'S 1-76-19 AND 8-90-2 WITH THEIR ASSIGNED CARRIER'S TRAINING DEPARTMENTS.