Tailskid door becomes detached from tailskid strut on takeoff.

Attributes
ACN	318587
Time
Date	199510
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : dtw
State Reference	MI
Altitude	agl bound lower : 500 agl bound upper : 500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : dtw tower : rdu
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	climbout : initial climbout : takeoff cruise other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : commercial
Experience	flight time last 90 days : 100 flight time total : 6000
ASRS Report	318587
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 250 flight time total : 6000 flight time type : 250
ASRS Report	318590
Events
Anomaly	aircraft equipment problem : less severe
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	none taken : anomaly accepted
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

After gear retraction, the tailskid light remained on following normal takeoff. Checklist was complied with. The post landing inspection made of the tailskid revealed tailskid door hanging from front hinges. The safety wire chain and the tailskid shear clip were fully intact on the tailskid strut. The tailskid door was detached from the tailskid strut and all the rivets were missing on the attachment fitting. I have concluded that prior damage to the rivets eventually culminated in failure of the attachment point between the tailskid door and the tailskid strut upon gear retraction.

Original NASA ASRS Text

Title: TAILSKID DOOR BECOMES DETACHED FROM TAILSKID STRUT ON TKOF.

Narrative: AFTER GEAR RETRACTION, THE TAILSKID LIGHT REMAINED ON FOLLOWING NORMAL TKOF. CHKLIST WAS COMPLIED WITH. THE POST LNDG INSPECTION MADE OF THE TAILSKID REVEALED TAILSKID DOOR HANGING FROM FRONT HINGES. THE SAFETY WIRE CHAIN AND THE TAILSKID SHEAR CLIP WERE FULLY INTACT ON THE TAILSKID STRUT. THE TAILSKID DOOR WAS DETACHED FROM THE TAILSKID STRUT AND ALL THE RIVETS WERE MISSING ON THE ATTACHMENT FITTING. I HAVE CONCLUDED THAT PRIOR DAMAGE TO THE RIVETS EVENTUALLY CULMINATED IN FAILURE OF THE ATTACHMENT POINT BTWN THE TAILSKID DOOR AND THE TAILSKID STRUT UPON GEAR RETRACTION.

Data retrieved from NASA's ASRS site as of July 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.