Mdt had to return land phl when the nose gear failed to retract after takeoff.

Attributes
ACN	228306
Time
Date	199212
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : phl
State Reference	PA
Altitude	msl bound lower : 4000 msl bound upper : 4000
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tower : phl
Operator	common carrier : air carrier
Make Model Name	Medium Transport, High Wing, 2 Turboprop Eng
Flight Phase	climbout : initial climbout : takeoff ground : preflight
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : cfi pilot : atp
Experience	flight time last 90 days : 190 flight time total : 5405
ASRS Report	228306
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	non adherence other
Independent Detector	other flight crewa
Resolutory Action	none taken : unable
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

On previous landing, aircraft developed a nose wheel shimmy. Maintenance elected to change both nose wheel tires. The crew arrived at the aircraft approximately 20 min before boarding and completed the general walk around inspection while maintenance was finishing the job. Maintenance gave the ok to board the aircraft, and the passengers were enplaned. Maintenance signed off the logbook and said we were ready to go. Aircraft takeoff the nose gear would not retract. Crew suspected the nose gear lock was not removed and returned to the philadelphia, international airport. The remainder of the flight and landing was uneventful and maintenance discovered the nose lock was still in place. This flight was almost an hour late and the passengers arrived at the aircraft before maintenance gave the ok. Maintenance also reported that the nose lock mechanism on this aircraft was improperly marked.

Original NASA ASRS Text

Title: MDT HAD TO RETURN LAND PHL WHEN THE NOSE GEAR FAILED TO RETRACT AFTER TKOF.

Narrative: ON PREVIOUS LNDG, ACFT DEVELOPED A NOSE WHEEL SHIMMY. MAINT ELECTED TO CHANGE BOTH NOSE WHEEL TIRES. THE CREW ARRIVED AT THE ACFT APPROX 20 MIN BEFORE BOARDING AND COMPLETED THE GENERAL WALK AROUND INSPECTION WHILE MAINT WAS FINISHING THE JOB. MAINT GAVE THE OK TO BOARD THE ACFT, AND THE PAXS WERE ENPLANED. MAINT SIGNED OFF THE LOGBOOK AND SAID WE WERE READY TO GO. ACFT TKOF THE NOSE GEAR WOULD NOT RETRACT. CREW SUSPECTED THE NOSE GEAR LOCK WAS NOT REMOVED AND RETURNED TO THE PHILADELPHIA, INTL ARPT. THE REMAINDER OF THE FLT AND LNDG WAS UNEVENTFUL AND MAINT DISCOVERED THE NOSE LOCK WAS STILL IN PLACE. THIS FLT WAS ALMOST AN HR LATE AND THE PAXS ARRIVED AT THE ACFT BEFORE MAINT GAVE THE OK. MAINT ALSO RPTED THAT THE NOSE LOCK MECHANISM ON THIS ACFT WAS IMPROPERLY MARKED.

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.