# Incident 20010426006779I: Doug DC871F, Nashville, TN, April 26, 2001 - Type: FAA incident report (Accident/Incident Data System), as reported - Date: April 26, 2001, 06:29 local time - Place: Nashville, TN - Airport: Nashville International Airport - Damage: Minor damage - Phase of flight: Level Off Touchdown - Operating rules: Air carrier (Part 121) - Operator: RRXA - Location: 36.1102° N, 86.6602° W: From the FAA, an estimate near the named town, within about 3 miles - Nearby events: https://openairdocs.org/map.md?lat=36.1102&lon=-86.6602&mi=10 - Aircraft: N8076U, a cancelled registration (https://openairdocs.org/deregistered/N8076U-2006-05-17) (OpenAirDocs) - Registry model: Douglas DC-8-71F (registry code 302199D, https://openairdocs.org/model/douglas-dc-8-71f) (OpenAirDocs) - Registry engine: CFM International CFM56 series (registry code 13802, https://openairdocs.org/engine/cfm-international-cfm56-series) (OpenAirDocs) - Reported make and model: DOUG DC871F - People aboard: 3 - Fatal injuries: 0 - Pilot flight hours: 1,200 total, 234 in the last 90 days - NTSB investigation: [NTSB MIA01IA129](https://openairdocs.org/ntsb/MIA01IA129) (OpenAirDocs) - FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/) - Page: https://openairdocs.org/incident/20010426006779I ## Narrative As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^. (.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^ ## The NTSB's investigation of this event (1) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB MIA01IA129](https://openairdocs.org/ntsb/MIA01IA129), Apr 26, 2001: McDonnell Douglas DC-8-71F (N8076U), Nashville, TN, incident, minor damage. Probable cause: The failure of company maintenance personnel to install the correct hydraulic landing gear extension component, and the failure of company maintenance inspection personnel to comply with proper post… ## Other reports on N8076U (3) Matched to the same aircraft by N-number and date. - [Incident 19830304011969I](https://openairdocs.org/incident/19830304011969I), Mar 4, 1983: Doug DC861 (N8076U), Reno, NV, Minor damage. #1 Engine failed. Visible damage to engine cowling. Declared emergency. Diverted to Reno. C1 disc failure. - [Incident 19820528023979I](https://openairdocs.org/incident/19820528023979I), May 28, 1982: Doug DC861 (N8076U), Cheyenne, WY. Flight attendant temporarily incapacitated when thrown to floor in moderate turbulance. - [Incident 19800907082129I](https://openairdocs.org/incident/19800907082129I), Sep 7, 1980: Doug DC861 (N8076U), Chicago, IL. Flight returned due to a hydraulic problem. A brake line fitting had broken. 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. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.