|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Local Time Of Day||1801 To 2400|
|Locale Reference||airport : oak|
|Altitude||agl bound lower : 0|
agl bound upper : 50
|Controlling Facilities||tower : oak|
tower : iah
|Operator||general aviation : instructional|
|Make Model Name||Small Transport, Low Wing, 2 Recip Eng|
|Flight Phase||climbout : takeoff|
ground : preflight
|Function||flight crew : single pilot|
|Qualification||pilot : instrument|
pilot : commercial
|Function||other personnel other|
|Qualification||other other : other|
|Anomaly||aircraft equipment problem : less severe|
|Independent Detector||other flight crewa|
|Resolutory Action||flight crew : declared emergency|
none taken : unable
|Air Traffic Incident||Pilot Deviation|
Aircraft preflted at night by flashlight and local floodlights. Right forward access panel to heater compartment appeared secure. During takeoff, panel separated from aircraft. Upon landing found one dzus fastener still on aircraft. Panel normally secured by about 20 dzus fasteners. Investigation appears that earlier maintenance check failed to lock all dzus fasteners. This type of fastener does not stick out very far when open (approximately 1/8'), and in dark were not observed open. Pilots should verify by touch when possible. It should be noted that this pilot 'felt' prior to takeoff, that the preflight actions were thorough complete and unhurried. Approximately 15 mins were devoted to this action. Further, the white paint of the fuselage did not contrast with the open dzus fittings. Finally, it should be added that we are unable to confirm dzus fittings' position prior to sep, but only 1 was found damaged and the rest were still on panel and intact.
Original NASA ASRS Text
Title: CHARTER SMT LOST COMPARTMENT ACCESS DOOR ON TKOF. RETURN LAND.
Narrative: ACFT PREFLTED AT NIGHT BY FLASHLIGHT AND LCL FLOODLIGHTS. RIGHT FORWARD ACCESS PANEL TO HEATER COMPARTMENT APPEARED SECURE. DURING TKOF, PANEL SEPARATED FROM ACFT. UPON LNDG FOUND ONE DZUS FASTENER STILL ON ACFT. PANEL NORMALLY SECURED BY ABOUT 20 DZUS FASTENERS. INVESTIGATION APPEARS THAT EARLIER MAINT CHK FAILED TO LOCK ALL DZUS FASTENERS. THIS TYPE OF FASTENER DOES NOT STICK OUT VERY FAR WHEN OPEN (APPROX 1/8'), AND IN DARK WERE NOT OBSERVED OPEN. PLTS SHOULD VERIFY BY TOUCH WHEN POSSIBLE. IT SHOULD BE NOTED THAT THIS PLT 'FELT' PRIOR TO TKOF, THAT THE PREFLT ACTIONS WERE THOROUGH COMPLETE AND UNHURRIED. APPROX 15 MINS WERE DEVOTED TO THIS ACTION. FURTHER, THE WHITE PAINT OF THE FUSELAGE DID NOT CONTRAST WITH THE OPEN DZUS FITTINGS. FINALLY, IT SHOULD BE ADDED THAT WE ARE UNABLE TO CONFIRM DZUS FITTINGS' POSITION PRIOR TO SEP, BUT ONLY 1 WAS FOUND DAMAGED AND THE REST WERE STILL ON PANEL AND INTACT.
Data retrieved from NASA's ASRS site as of August 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.