Flight crew unable to close nose gear door.

Attributes
ACN	206399
Time
Date	199204
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : sjc
State Reference	CA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : lax
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	climbout : takeoff ground : preflight landing other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : second officer
Qualification	pilot : flight engineer pilot : atp
Experience	flight time last 90 days : 150 flight time total : 5000 flight time type : 2000
ASRS Report	206399
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : less severe
Independent Detector	other other : unspecified cockpit
Resolutory Action	flight crew : overcame equipment problem flight crew : declared emergency other
Consequence	Other
Supplementary
Primary Problem	Aircraft

Narrative:

On takeoff roll, during latter portion, loud noises came from nose gear area. Upon gear retraction, nose gear door failed to close. Gear went down normally. Returned to takeoff airport and landed uneventfully. Nose gear strut was deflated, preventing normal gear door operation. Nose gear was svced, valve in nose gear was tightened. Flight released and operated normally. Not possible to determine why nose gear strut deflated. Gear operated normally on previous departure.

Original NASA ASRS Text

Title: FLC UNABLE TO CLOSE NOSE GEAR DOOR.

Narrative: ON TKOF ROLL, DURING LATTER PORTION, LOUD NOISES CAME FROM NOSE GEAR AREA. UPON GEAR RETRACTION, NOSE GEAR DOOR FAILED TO CLOSE. GEAR WENT DOWN NORMALLY. RETURNED TO TKOF ARPT AND LANDED UNEVENTFULLY. NOSE GEAR STRUT WAS DEFLATED, PREVENTING NORMAL GEAR DOOR OP. NOSE GEAR WAS SVCED, VALVE IN NOSE GEAR WAS TIGHTENED. FLT RELEASED AND OPERATED NORMALLY. NOT POSSIBLE TO DETERMINE WHY NOSE GEAR STRUT DEFLATED. GEAR OPERATED NORMALLY ON PREVIOUS DEP.

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.