Large transport takeoff with left main and nose gear pins still installed.

Attributes
ACN	97047
Time
Date	198810
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : ewr
State Reference	NJ
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : ewr tower : phf
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	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 : 150 flight time total : 7000
ASRS Report	97047
Person 2
Affiliation	company : air carrier
Function	flight crew : second officer
Qualification	pilot : flight engineer
ASRS Report	96823
Events
Anomaly	non adherence : published procedure
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

After takeoff from ewr, the left main gear and nose gear failed to retract. Cycled gear one time. Left main and nose gear still failed to retract. Returned for uneventful landing at ewr. Upon inspection by maintenance, gear pins had not been removed from left main and nose gear. Second officer claims not to have seen pins on his walkaround and the maintenance log was signed off as gear pins removed. Suspect that the gear pin flags were missing, making gear pins easy to overlook. Supplemental information from acn 96823. During my walkaround, no gear pins were seen and positively no gear pin flags were hanging down. I believe someone installed these 2 gear pins at a time that I'm unsure of but with the intent of causing this incident. Only 2 pins were installed. No log book entry was made, and the warning flags were purposely hidden out of view.

Original NASA ASRS Text

Title: LGT TKOF WITH LEFT MAIN AND NOSE GEAR PINS STILL INSTALLED.

Narrative: AFTER TKOF FROM EWR, THE LEFT MAIN GEAR AND NOSE GEAR FAILED TO RETRACT. CYCLED GEAR ONE TIME. LEFT MAIN AND NOSE GEAR STILL FAILED TO RETRACT. RETURNED FOR UNEVENTFUL LNDG AT EWR. UPON INSPECTION BY MAINT, GEAR PINS HAD NOT BEEN REMOVED FROM LEFT MAIN AND NOSE GEAR. S/O CLAIMS NOT TO HAVE SEEN PINS ON HIS WALKAROUND AND THE MAINT LOG WAS SIGNED OFF AS GEAR PINS REMOVED. SUSPECT THAT THE GEAR PIN FLAGS WERE MISSING, MAKING GEAR PINS EASY TO OVERLOOK. SUPPLEMENTAL INFO FROM ACN 96823. DURING MY WALKAROUND, NO GEAR PINS WERE SEEN AND POSITIVELY NO GEAR PIN FLAGS WERE HANGING DOWN. I BELIEVE SOMEONE INSTALLED THESE 2 GEAR PINS AT A TIME THAT I'M UNSURE OF BUT WITH THE INTENT OF CAUSING THIS INCIDENT. ONLY 2 PINS WERE INSTALLED. NO LOG BOOK ENTRY WAS MADE, AND THE WARNING FLAGS WERE PURPOSELY HIDDEN OUT OF VIEW.

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