Upon gear extension in small transport there was no green light for left main gear. After recycling ...

Attributes
ACN	111834
Time
Date	198905
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : teb
State Reference	NJ
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : teb tower : msp
Operator	general aviation : instructional
Make Model Name	Small Transport, Low Wing, 2 Recip Eng
Flight Phase	landing other
Route In Use	enroute : on vectors
Flight Plan	VFR
Person 1
Affiliation	Other
Function	flight crew : first officer
Qualification	pilot : instrument pilot : cfi pilot : commercial
Experience	flight time last 90 days : 100 flight time total : 1600 flight time type : 50
ASRS Report	111834
Person 2
Affiliation	Other
Function	flight crew : captain oversight : pic
Qualification	pilot : commercial
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	other flight crewa
Resolutory Action	flight crew : overcame equipment problem flight crew : declared emergency
Consequence	Other
Supplementary
Primary Problem	Aircraft

Narrative:

We had just entered the downwind leg of our pattern to runway 24. My captain selected gear down and we did not get a down and locked indication on the left main gear. We recycled the gear approximately 5 times. There was still no green light on the left. We tested the bulb and it was ok. During this time we informed teb tower of our situation and relocated to an area 5 mi northeast of the air field. We then ran through the emergency gear extension procedure. We attempted to extend the gear using the hand pump with no success. At this point we decided to go to the tower for a fly by. The tower said that it appeared to be down and locked. We declared an emergency at this time and returned for landing. I left the cockpit at this time to situation by the door in the rear of the aircraft. My captain wanted me by the door to promote rapid evacuate/evacuation in the event that the gear did collapse. My captain made a smooth landing and we coasted to a stop on the runway. After deboarding the passenger, I secured the gear and we went to the local FBO.

Original NASA ASRS Text

Title: UPON GEAR EXTENSION IN SMT THERE WAS NO GREEN LIGHT FOR LEFT MAIN GEAR. AFTER RECYCLING AND EMERGENCY EXTENSION PLUS TWR FLY BY, EMERGENCY WAS DECLARED AND ACFT LANDED WITHOUT INCIDENT.

Narrative: WE HAD JUST ENTERED THE DOWNWIND LEG OF OUR PATTERN TO RWY 24. MY CAPT SELECTED GEAR DOWN AND WE DID NOT GET A DOWN AND LOCKED INDICATION ON THE LEFT MAIN GEAR. WE RECYCLED THE GEAR APPROX 5 TIMES. THERE WAS STILL NO GREEN LIGHT ON THE LEFT. WE TESTED THE BULB AND IT WAS OK. DURING THIS TIME WE INFORMED TEB TWR OF OUR SITUATION AND RELOCATED TO AN AREA 5 MI NE OF THE AIR FIELD. WE THEN RAN THROUGH THE EMER GEAR EXTENSION PROC. WE ATTEMPTED TO EXTEND THE GEAR USING THE HAND PUMP WITH NO SUCCESS. AT THIS POINT WE DECIDED TO GO TO THE TWR FOR A FLY BY. THE TWR SAID THAT IT APPEARED TO BE DOWN AND LOCKED. WE DECLARED AN EMER AT THIS TIME AND RETURNED FOR LNDG. I LEFT THE COCKPIT AT THIS TIME TO SIT BY THE DOOR IN THE REAR OF THE ACFT. MY CAPT WANTED ME BY THE DOOR TO PROMOTE RAPID EVAC IN THE EVENT THAT THE GEAR DID COLLAPSE. MY CAPT MADE A SMOOTH LNDG AND WE COASTED TO A STOP ON THE RWY. AFTER DEBOARDING THE PAX, I SECURED THE GEAR AND WE WENT TO THE LCL FBO.

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.

Upon gear extension in small transport there was no green light for left main gear. After recycling and emergency extension plus tower fly by, emergency was declared and aircraft landed without incident.