What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(.19)On April 26, 2001, at about 0629 central daylight time, a boeing/mcdonnell Douglas DC-8-71F, N8076U, registered to emery worldwide airlines, inc., operating as a 14 CFR part 121 cargo flight, flight 228, sustained a left main landing gear, (lmlg) up landing at Nashville International Airport, Nashville, Tennessee. Visual meteorological conditions prevailed and an IFR flight plan was filed. The airline transport-rated pilot, copilot, and flight engineer were not injured, and the aircraft sustained minor damage. The flight departed dayton, Ohio, about 42 minutes before the incident. Postincident examination of the aircraft and aircraft maintenance logs revealed that prior to the flight, on April 25, 2000, the lmlg hydraulic system had undergone a component change by emery maintenance at dayton. The component replaced was a hydraulic flow restrictor, pn 6F2020-1. The part number of the installed replacement component was not depicted anywhere on the component. Reference to the aircraft log pages revealed the part number of the installed part was 4776708-5503. The Douglas aircraft corporation (dac) sepcification for this part (6F2020-1, a restrictor valve), based on the illustrat ed part catalog for the aircraft is 4776708-5503 with 4776708-5503A as an acceptable substitute. The part which was installed on the aircraft, tagged as 4776708-5503A, appears to be a one way check valve rather tha a restrictor valve. The recovery crew had to bypass the component to get the lmlg to extend on the ground. The flow restrictor, pn 6F2020-1, was removed from the rmlg hydraulic system, and installed in the lmlg system and normal operation of the lmlg occurred. (-23)left main gear failed to extend. Checklist complied with and an emergency landing was accomplished with minor damage to engines 1& 2. privacy data omitted
As the FAA filed it
(.19)ON APRIL 26, 2001, AT ABOUT 0629 CENTRAL DAYLIGHT TIME, A BOEING/MCDONNELL DOUGLAS DC-8-71F, N8076U, REGISTERED TO EMERY WORLDWIDE AIRLINES, INC., OPERATING AS A 14 CFR PART 121 CARGO FLIGHT, FLIGHT 228, SUSTAINED A LEFT MAIN LANDING GEAR, (LMLG) UP LANDING AT NASHVILLE INTERNATIONAL AIRPORT, NASHVILLE, TENNESSEE. VISUAL METEOROLOGICAL CONDITIONS PREVAILED AND AN IFR FLIGHT PLAN WAS FILED. THE AIRLINE TRANSPORT-RATED PILOT, COPILOT, AND FLIGHT ENGINEER WERE NOT INJURED, AND THE AIRCRAFT SUSTAINED MINOR DAMAGE. THE FLIGHT DEPARTED DAYTON, OHIO, ABOUT 42 MINUTES BEFORE THE INCIDENT. POSTINCIDENT EXAMINATION OF THE AIRCRAFT AND AIRCRAFT MAINTENANCE LOGS REVEALED THAT PRIOR TO THE FLIGHT, ON APRIL 25, 2000, THE LMLG HYDRAULIC SYSTEM HAD UNDERGONE A COMPONENT CHANGE BY EMERY MAINTENANCE AT DAYTON. THE COMPONENT REPLACED WAS A HYDRAULIC FLOW RESTRICTOR, PN 6F2020-1. THE PART NUMBER OF THE INSTALLED REPLACEMENT COMPONENT WAS NOT DEPICTED ANYWHERE ON THE COMPONENT. REFERENCE TO THE AIRCRAFT LOG PAGES REVEALED THE PART NUMBER OF THE INSTALLED PART WAS 4776708-5503. THE DOUGLAS AIRCRAFT CORPORATION (DAC) SEPCIFICATION FOR THIS PART (6F2020-1, A RESTRICTOR VALVE), BASED ON THE ILLUSTRAT ED PART CATALOG FOR THE AIRCRAFT IS 4776708-5503 WITH 4776708-5503A AS AN ACCEPTABLE SUBSTITUTE. THE PART WHICH WAS INSTALLED ON THE AIRCRAFT, TAGGED AS 4776708-5503A, APPEARS TO BE A ONE WAY CHECK VALVE RATHER THA A RESTRICTOR VALVE. THE RECOVERY CREW HAD TO BYPASS THE COMPONENT TO GET THE LMLG TO EXTEND ON THE GROUND. THE FLOW RESTRICTOR, PN 6F2020-1, WAS REMOVED FROM THE RMLG HYDRAULIC SYSTEM, AND INSTALLED IN THE LMLG SYSTEM AND NORMAL OPERATION OF THE LMLG OCCURRED. (-23)LEFT MAIN GEAR FAILED TO EXTEND. CHECKLIST COMPLIED WITH AND AN EMERGENCY LANDING WAS ACCOMPLISHED WITH MINOR DAMAGE TO ENGINES 1& 2. ^PRIVACY DATA OMITTED^
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.
Other reports on N8076U · 3
Matched to the same aircraft by N-number and date.