A C404's emergency landing gear extension nitrogen bottle did not reset properly after servicing whi...

Attributes
ACN	1023815
Time
Date	201207
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Cessna 404 Titan
Operating Under FAR Part	Part 135
Flight Phase	Initial Climb
Route In Use	Vectors
Flight Plan	IFR
Component
Aircraft Component	Emergency Extension System
Person 1
Function	Captain Pilot Flying Single Pilot
Qualification	Flight Crew Commercial Flight Crew Multiengine Flight Crew Instrument Flight Crew Flight Instructor
Experience	Flight Crew Last 90 Days 120 Flight Crew Total 1375 Flight Crew Type 25
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural Maintenance Deviation - Procedural Published Material / Policy

Narrative:

After departure the landing gear failed to retract. Red gear unlocked annunciator illuminated and the right main gear locked (green) light remained on. After a period of about 15 seconds; during which the nose gear was observed down and not moving in the mirror; I reset the landing gear lever and all three green lights indicated down and locked. After 2 more unsuccessful attempts to retract the landing gear; I notified ZZZ departure control of the issue and requested a return to the departure airport. The rest of the flight was uneventful with vectors to a landing. After landing; the mechanic inspecting the aircraft identified the problem from the nitrogen emergency gear extension bottle. The bottle did not reset properly during servicing and impeded the operation of the hydraulic landing gear system.

Original NASA ASRS Text

Title: A C404's emergency landing gear extension nitrogen bottle did not reset properly after servicing which prevented the landing gear from retracting after takeoff so the pilot returned to land.

Narrative: After departure the landing gear failed to retract. Red gear unlocked annunciator illuminated and the right main gear locked (green) light remained on. After a period of about 15 seconds; during which the nose gear was observed down and not moving in the mirror; I reset the landing gear lever and all three green lights indicated down and locked. After 2 more unsuccessful attempts to retract the landing gear; I notified ZZZ Departure control of the issue and requested a return to the departure airport. The rest of the flight was uneventful with vectors to a landing. After landing; the Mechanic inspecting the aircraft identified the problem from the nitrogen emergency gear extension bottle. The bottle did not reset properly during servicing and impeded the operation of the hydraulic landing gear system.

Data retrieved from NASA's ASRS site as of July 2013 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.