# Incident 20121019022999I: Cessna 560XL, Nantucket, MA, October 19, 2012

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: October 19, 2012, 13:35 local time
- Place: Nantucket, MA
- Damage: Substantial damage
- Phase of flight: Takeoff: Climb Out
- Operating rules: Air taxi and commuter (Part 135)
- Operator: DXTA
- Location: 41.2531° N, 70.0603° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=41.2531&lon=-70.0603&mi=10
- Aircraft: N576QS, registered now (https://openairdocs.org/aircraft/N576QS) (OpenAirDocs)
- Registry model: Cessna 560XL (registry code 2076702, https://openairdocs.org/model/cessna-560xl) (OpenAirDocs)
- Registry engine: Pratt & Whitney Canada PW545B (registry code 52186, https://openairdocs.org/engine/pratt-whitney-canada-pw545b) (OpenAirDocs)
- Reported make and model: CESSNA 560XL
- Reported engine: P&W CANADA PW545B
- People aboard: 3
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Airline transport
- Pilot flight hours: 8,765 total, 394 in this make and model, 104 in the last 90 days
- NTSB investigation: [NTSB ERA13IA036](https://openairdocs.org/ntsb/ERA13IA036) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20121019022999I

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

ON OCTOBER 19, 2012, NETJETS (DXTA) FLIGHT EJA576, N576QS A CESSNA CITATION CE-560XL ORIGINATED A 14 CFR PART 135 FLIGHT FROM NANTUCKET, MA (KACK) TO LEXINGTON, KY (KLEX).  THE FLIGHT DEPARTED KACK AT 1335 LOCAL TIME.  THERE WAS ONE FEMALE PASSENGER ON BOARD AND A CREW OF TWO.THE AIRCRAFT DEPARTED ON RUNWAY 6 AND AT APPROXIMATELY 5 – 10 FEET IN THE AIR THE PILOT OF AIRCRAFT N332FX AN AIRCRAFT THAT HAD JUST LANDED AND WAS TAXIING BACK TO THE TERMINAL REPORTED THAT IT LOOKED LIKE A WATER BALLOON BURST UNDER THE LEFT WING OF N576QS.  AIRCRAFT N332FX REPORTED AS N576QS FLEW PAST THE AIRCRAFT THAT THE LEFT MAIN GEAR WAS HANGING DOWN AND THE TIRE APPEARED INTACT.  UPON RETURNING TO KACK THE AIRCRAFT REPORTED TO HAVE AN 800-1000 POUND FUEL IMBALANCE BETWEEN THE LEFT AND RIGHT WING FUEL.  THE LEFT WING WAS LOWER THAN THE RIGHT WING.  THE TOWER REPORTED THAT UPON LANDING THE AIRCRAFT WAS STREAMING OUT FUEL SO FAST THAT IT LOOKED LIKE SMOKE COMING FROM THE LEFT WING.DURING AN INSPECTION OF THE AIRCRAFT IT WAS NOTED THAT THERE WAS A PUNCTURE APPROXIMATELY 3 ½ INCH LONG IN THE SIDEWALL OF THE FUEL TANK IN LINE WITH THE AFT TRUNNION ATTACH POINT OF THE LEFT GEAR.  DURING LANDING IT APPEARS THAT THE LEFT GEAR AFT TRUNNION ATTACH POINT WAS DRIVEN UPWARD CAUSING BULGING, POPPED RIVETS AND CRACKS INTO THE UPPER WING SKIN.  IT APPEARS THAT THE AFT TRUNNION ATTACH PIN WAS NOT INSTALLED (SEATED) CORRECTLY ALLOWING THE PIN TO MIGRATE AFT AND FALL OUT OF THE TRUNNION INTO THE FLAP WELL.  THE PIN WAS FOUND BY CITATION SERVICE CENTER TECHNICIANS IN THE AFT FLAP WELL CHANNEL UPON THEIR INITIAL INSPECTION OF THE AIRCRAFT.  THE LOCKING BOLT THAT SHOULD GO THROUGH THE TRUNNION PIN WAS STILL INSTALLED WITH WITNESS MARK ON THE NUT IN THE AFT TRUNNION SLOT.ON NOVEMBER 29, 2012, NTSB INVESTIGATOR REPORTED THE ACCIDENT WAS BEING DOWNGRADED FROM AN ACCIDENT TO AN INCIDENT PER NTSB STRUCTURAL ENGINEER CLINT CROOKSHANKS.

## 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 ERA13IA036](https://openairdocs.org/ntsb/ERA13IA036), Oct 19, 2012: Cessna 560XL (N576QS), Nantucket, MA, incident, minor damage. Probable cause: The incorrect installation of the left main gear aft trunnion pivot pin by maintenance personnel, which resulted in separation of the aft portion of the left main gear trunnion from the aft trunnion…

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.

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