A return land situation created by nose gear down lock pin still inserted after takeoff.

Attributes
ACN	202737
Time
Date	199202
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : sea
State Reference	WA
Altitude	agl bound lower : 0 agl bound upper : 4000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : sea tower : sea
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	climbout : initial climbout : takeoff ground : preflight
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 230 flight time total : 11000 flight time type : 3500
ASRS Report	202737
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : less severe non adherence : published procedure other anomaly other
Independent Detector	other flight crewa
Resolutory Action	other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

After takeoff from seattle tacoma international airport the landing gear handle was placed in the up position. The 2 main gear indicated up and locked the nose wheel showed unsafe with the associated wind noise indicating it was in the down position. The gear was cycled and the gear remained unsafe. An approach to landing was made after the gear was lowered and an all safe 3 down and locked indication in the cockpit was observed. The tower visually reported all gear down. An uneventful full stop landing was made. At the gate it was determined that a down-lock safety pin was installed in the nose gear preventing it from retracting.

Original NASA ASRS Text

Title: A RETURN LAND SITUATION CREATED BY NOSE GEAR DOWN LOCK PIN STILL INSERTED AFTER TKOF.

Narrative: AFTER TKOF FROM SEATTLE TACOMA INTL ARPT THE LNDG GEAR HANDLE WAS PLACED IN THE UP POS. THE 2 MAIN GEAR INDICATED UP AND LOCKED THE NOSE WHEEL SHOWED UNSAFE WITH THE ASSOCIATED WIND NOISE INDICATING IT WAS IN THE DOWN POS. THE GEAR WAS CYCLED AND THE GEAR REMAINED UNSAFE. AN APCH TO LNDG WAS MADE AFTER THE GEAR WAS LOWERED AND AN ALL SAFE 3 DOWN AND LOCKED INDICATION IN THE COCKPIT WAS OBSERVED. THE TWR VISUALLY RPTED ALL GEAR DOWN. AN UNEVENTFUL FULL STOP LNDG WAS MADE. AT THE GATE IT WAS DETERMINED THAT A DOWN-LOCK SAFETY PIN WAS INSTALLED IN THE NOSE GEAR PREVENTING IT FROM RETRACTING.

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.