# Accident 20010529010119A: Cessna 421C, Greenville, MS, May 29, 2001 - Type: FAA accident report (Accident/Incident Data System), as reported - Date: May 29, 2001, 07:15 local time - Place: Greenville, MS - Airport: Greenville Municipal - Damage: Substantial damage - Phase of flight: Normal Cruise - Operating rules: General operating rules (Part 91) - Location: 33.3809° N, 91.0495° W: From the FAA, an estimate near the named town, within about 3 miles - Nearby events: https://openairdocs.org/map.md?lat=33.3809&lon=-91.0495&mi=10 - Aircraft: N51ER (not matched to a registry record) - Reported make and model: CESSNA 421C - People aboard: 8 - Fatal injuries: 0 - Pilot flight hours: 6,904 total, 1,200 in this make and model, 45 in the last 90 days - NTSB investigation: [NTSB ATL01LA060](https://openairdocs.org/ntsb/ATL01LA060) (OpenAirDocs) - FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/) - Page: https://openairdocs.org/incident/20010529010119A ## Narrative As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^. (.19) ON MAY 29, 2001, AT 0715 CENTRAL DAYLIGHT TIME, A CESSNA 421, N51ER, EXPERIENCED A FLIGHT CONTROL PROBLEM WHILE IN CRUISE FLIGHT NEAR GREENVILLE, MISSISSIPPI. THE PERSONAL FLIGHT WAS CONDUCTED BY THE PILOT UNDER PROVISIONS OF TITLE 14 CFR PART 91 WITH AN INSTRUMENT FLIGHT PLAN FILED. VISUAL WEATHER CONDITIONS PREVAILED AT THE TIME OF THE ACCIDENT. THE AIRPLANE WAS SUBSTANTIALLY DAMAGED. THE AIR TRANSPORT PILOT AND HIS SEVEN PASSENGERS WERE NOT INJURED. THE FLIGHT DEPARTED SPRINGDALE MUNICIPAL AIRPORT IN SPRINGDALE, ARKANSAS, AT 0600. ACCORDING TO PILOT, THE AIRPLANE HAS RECENTLY BEEN PAINTED AND THE FLIGHT CONTROL SURFACES HAD BEEN REMOVED. THE PILOT STATED, WHILE IN CRUISE FLIGHT AT 19000 FEET HE HEARD A LOUD POP. THIS WAS FOLLOWED BY A VIOLENT SHAKING OF THE FLIGHT CONTROL YOKE AND THE AIRPLANE ENTERED AN UNCONTROLLED DESCENT. (-23) ELEV. TRIM TAB PARTIALLY DEPARTED AIRCRAFT AT 19,000' 25 MILES NORTH OF GLH. LANDED SAFELY AT GLH. (.4) ON MAY 29, 2001, AT 0715 CENTRAL DAYLIGHT TIME, A CESSNA 421, N51ER, EXPERIENCED A FLIGHT CONTROL PROBLEM WHILE IN CRUISE FLIGHT AND EXECUTED AN EMERGENCY DESCENT AND LANDING AT THE MID DELTA REGIONAL AIRPORT (GLH) IN GREENVILLE, MISSISSIPPI. THE PERSONAL FLIGHT WAS CONDUCTED BY THE PILOT UNDER PROVISIONS OF TITLE 14 CFR PART 91 WITH AN INSTRUMENT FLIGHT PLAN FILED. VISUAL WEATHER CONDITIONS PREVAILED AT THE TIME OF THE ACCIDENT. THE AIRPLANE WAS SUBSTANTIALLY DAMAGED. THE AIR TRANSPORT PILOT AND SEVEN PASSENGERS WERE NOT INJURED. THE FLIGHT DEPARTED SPRINGDALE MUNICIPAL AIRPORT (ASG) IN SPRINGDALE, ARKANSAS, AT 0600, EN ROUTE TO DESTIN, FLORIDA. THE PILOT STATED, ABOUT 45 MINUTES INTO THE CRUISE FLIGHT AT 19,000 FEET, THERE WAS A "LOUD POP" ACCOMPANIED BY INSTANTANEOUS SHAKING OF THE CONTROL YOKE. THE PILOT DISENGAGED THE AUTOPILOT AND NOTICED THE AIRPLANE HAD BEGUN A DESCENT. THE PILOT ADVISED MEMPHIS CENTER OF THE PROBLEM AND RECEIVED VECTORS TO THE NEAREST AIRPORT, MID DELTA REGIONAL. THE PILOT REPORTED THAT THE AIRPLANE WAS FLYING IN A NOSE-DOWN ATTITUDE WITH A DESCENT RATE OF 1,200-1,500 FEET PER MINUTE. THE PILOT UTILIZED FULL-AFT ELEVATOR AND INCREASED POWER TO BRING THE AIRPLANE'S NOSE TO A "MORE CONTROLLED ATTITUDE." THE PILOT REPORTED, UPON REACHING THE AIRPORT, THE AIRPLANE WAS TOO HIGH, SO THE PILOT CIRCLED THEAIRPORT TWICE BEFORE ENTERING A FINAL APPROACH FOR RUNWAY 36R. BECAUSE OF THE NOSE-DOWN PITCHING TENDENCY OF THE AIRPLANE, THE PILOT DECIDED NOT TO DEPLOY THE LANDING GEAR OR THE FLAPS. THE PILOT ADDED POWER AND HELD FULL-AFT ELEVATOR IN AN ATTEMPT TO FLARE THE AIRPLANE. THE AIRPLANE CAME TO A FULL STOP ON THE RUNWAY. EXAMINATION OF THE AIRPLANE REVEALED THE INBOARD HALF OF THE RIGHT ELEVATOR TRIM TAB WAS NOT ATTACHED TO THE RIGHT ELEVATOR. THE PUSH-PULL ROD WAS NOT CONNECTED TO THE RIGHT ELEVATOR TRIM TAB HORN, AND THE BOLT AND HARDWARE THAT CONNECTS THE PUSH-PULL ROD TO THE RIGHT ELEVATOR TRIM TAB HORN WERE MISSING. THE TRIM ACTUATOR ROD WAS BENT. THE AIRPLANE'S RECORDS REVEALED THAT THE FLIGHT CONTROLS HAD BEEN RECENTLY REMOVED FOR PAINTING AND WERE SIGNED OFF BY A MECHANIC AT THE PAINTING COMPANY ON MAY 11, 2001. DURING PAINTING, THE AIRPLANE'S REGISTRATION NUMBER WAS CHANGED FROM N543PM TO N51ER. THE RECORDS ALSO REVEALED THAT THE ELEVATOR TRIM WAS ADJUSTED AND SIGNED OFF BY A MECHANIC ON MAY 22, 2001. NO PREVIOUS RECORD OF CONTROL SURFACE MALFUNCTION WAS REVEALED DURING THE REVIEW OF THE AIRPLANE MAINTENANCE RECORDS. ## 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 ATL01LA060](https://openairdocs.org/ntsb/ATL01LA060), May 29, 2001: Cessna 421C (N51ER), Greenville, MS, substantial damage. Probable cause: The improper installation by maintenance personnel of the push-pull rod assembly on the right elevator trim tab horn resulted in an in-flight separation of the right elevator trim tab. 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.