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Safety Recommendation Details

Safety Recommendation A-90-149
Details
Synopsis: ON JULY 19, 1989, A MCDONNELL DOUGLAS DC-10-10, OPERATED BY UNITED AIRLINES AS FLIGHT 232, EN ROUTE FROM DENVER, COLORADO, TO CHICAGO, ILLINOIS, WITH 296 PERSONS ON BOARD, EXPERIENCED AN IN-FLIGHT EMERGENCY FOLLOWING THE FRAGMENTATION AND SEPARATION OF THE NO. 2 ENGINE FAN DISK. THE AIRPLANE CRASHED DURING AN ATTEMPTED EMERGENCY LANDING TO RUNWAY 4/22 AT SIOUX GATEWAY AIRPORT (SUX) SIOUX CITY, IOWA. DURING THE ACCIDENT, THE AIRPLANE SEPARATED INTO FOUR SECTIONS AND PORTIONS BURNED. OF THE 296 PERSONS ON BOARD, 110 PASSENGERS AND 1 FLIGHT ATTENDANT WERE FATALLY INJURED: 35 OF THESE PERSONS, SOME WITH TRAUMATIC BLUNT FORCE INJURIES, DIED OF ASPHYXIA SECONDARY TO SMOKE INHALATION, AND 76 DIED OF BLUNT FORCE TRAUMA. OF THE REMAINING 185 PERSONS, 47 SUSTAINED SERIOUS INJURIES, 125 SUSTAINED MINOR INJURIES, AND 13 WERE NOT INJURED.
Recommendation: THE NTSB RECOMMENDS THAT THE U.S. DEPARTMENT OF THE AIR FORCE: REQUIRE MAXIMUM CAPACITY DISCHARGE TESTS OF ALL EMERGENCY RESPONSE FIRE SERVICE VEHICLES BEFORE THE VEHICLES ARE ACCEPTED FOR SERVICE AND ON AN ESTABLISHED REGULAR SCHEDULE THEREAFTER.
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: 10/19/1990
Date Closed: 3/27/1992
Addressee(s) and Addressee Status: United States Department of Defense, Department of the Air Force (Closed - Acceptable Action)
Keyword(s):

Safety Recommendation History
From: NTSB
To: United States Department of Defense, Department of the Air Force
Date: 3/27/1992
Response:

From: United States Department of Defense, Department of the Air Force
To: NTSB
Date: 9/19/1991
Response: ATTACHMENTS 1 (AFLC FORM 252, 11 JAN 19) AND 2 (DRAFT CHAPTER 7 AFR 92-1) CONTAIN THE CURRENT REWRITE EFFORTS OF AFR 92-1, FIRE PROTECTION PROGRAM, AND TECHNICAL ORDER 36A12-23-19-1. THESE UPDATES PROVIDE MORE EXPLICIT ANNUAL PUMP TEST REQUIREMENTS AND TEST SPECIFICATIONS. THE AIR FORCE ANTICIPATES THE TECHNICAL ORDER CHANGES WILL BE DISTRIBUTED TO THE FIELD WHEN FINAL PRINTING IS ACCOMPLISHED IN THE OCTOBER 1991 TIMEFRAME. THE REGULATION'S RELEASE WILL FOLLOW IN EARLY 1992. ATTACHMENT 3 (HQ AFESC/DEMF MESSAGE, 13 MAY 91) CONTAINS INTERIM GUIDANCE DISTRIBUTED TO ALL AIR FORCE FIRE FIGHTING UNITS BY THE ENGINEERING SUPPORT CENTER AGENCY. PARAGRAPH ONE OF THIS POLICY MESSAGE INVOKES NFPA STANDARDS, WHICH INCLUDES PUMP INSPECTION AND SERVICING REQUIREMENTS.

From: NTSB
To: United States Department of Defense, Department of the Air Force
Date: 7/31/1991
Response:

From: United States Department of Defense, Department of the Air Force
To: NTSB
Date: 1/12/1991
Response: (SUMMARIZED) PROCUREMENT SPECIFICATIONS REQUIRE PUMP TESTS BEFORE DELIVERY TO THE GOVERNMENT. EACH VEHICLE IS INSPECT ED WHEN RECEIVED AT BASE LEVEL AND THEREAFTER, EACH VEHICLE IS TESTED ANNUALLY. THE AIR FORCE HAS PROVIDED INTERIM GUIDANCE TO CLARIFY ANNUAL OPERATOR PUMP TEST REQUIREMENTS & PUMP SPECIFICATIONS FOR THE P-18. THIS WILL GO INTO DIRECTIVES WHEN CURRENT REVISIONS ARE RELEASED, PROBABLY IN JULY 1991.