Door pops open when inflatable door seal activated. On return land, gear collapses.

Attributes
ACN	234134
Time
Date	199302
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : grr
State Reference	MI
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Operator	general aviation : personal
Make Model Name	Small Transport, Low Wing, 2 Recip Eng
Flight Phase	landing other
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : instrument pilot : private
Experience	flight time last 90 days : 90 flight time total : 5100 flight time type : 561
ASRS Report	234134
Person 2
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	other flight crewa
Resolutory Action	none taken : insufficient time
Consequence	other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

Aircraft departed on an IFR flight plan from runway 26R at grr. Shortly after liftoff, the cabin door popped open. Landing gear had not been retracted. Pilot advised ATC of need to return for landing to secure door. Aircraft was cleared to land on runway 26R, using right hand traffic. During turns to right, aircraft experienced considerable buffeting. Therefore, pilot elected to leave flaps retracted. Landing was normal for few seconds of rollout, when landing gear collapsed. Aircraft slid to stop on runway. There was no fire and there were no injuries. Door did not pop open until inflatable door seal was activated. Door had been properly secured prior to engine start. This is the first time door has opened in-flight. Cause of gear collapse is unknown at this time.

Original NASA ASRS Text

Title: DOOR POPS OPEN WHEN INFLATABLE DOOR SEAL ACTIVATED. ON RETURN LAND, GEAR COLLAPSES.

Narrative: ACFT DEPARTED ON AN IFR FLT PLAN FROM RWY 26R AT GRR. SHORTLY AFTER LIFTOFF, THE CABIN DOOR POPPED OPEN. LNDG GEAR HAD NOT BEEN RETRACTED. PLT ADVISED ATC OF NEED TO RETURN FOR LNDG TO SECURE DOOR. ACFT WAS CLRED TO LAND ON RWY 26R, USING R HAND TFC. DURING TURNS TO R, ACFT EXPERIENCED CONSIDERABLE BUFFETING. THEREFORE, PLT ELECTED TO LEAVE FLAPS RETRACTED. LNDG WAS NORMAL FOR FEW SECONDS OF ROLLOUT, WHEN LNDG GEAR COLLAPSED. ACFT SLID TO STOP ON RWY. THERE WAS NO FIRE AND THERE WERE NO INJURIES. DOOR DID NOT POP OPEN UNTIL INFLATABLE DOOR SEAL WAS ACTIVATED. DOOR HAD BEEN PROPERLY SECURED PRIOR TO ENG START. THIS IS THE FIRST TIME DOOR HAS OPENED INFLT. CAUSE OF GEAR COLLAPSE IS UNKNOWN AT THIS TIME.

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.