Primary loss of electrical power creates need for an emergency gear procedure. Aircraft equipment pr...

Attributes
ACN	200606
Time
Date	199202
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : mmu
State Reference	NJ
Altitude	msl bound lower : 2000 msl bound upper : 2000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : mmu
Person 1
Affiliation	Other
Function	flight crew : first officer instruction : instructor oversight : pic
Qualification	pilot : instrument pilot : commercial pilot : cfi
Experience	flight time last 90 days : 100 flight time total : 1900 flight time type : 20
ASRS Report	200606
Person 2
Affiliation	Other
Function	flight crew : single pilot flight crew : captain instruction : trainee
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	other flight crewa
Resolutory Action	flight crew : declared emergency flight crew : overcame equipment problem other
Consequence	Other
Supplementary
Primary Problem	Aircraft

Narrative:

Did normal run up in twin, all system checked normal. I was right seat in the capacity as safety pilot, when we took off from mmu. Everything seemed normal until I put the gear switch in the up position. At that time I informed the owner the navigation communication radios were fading out. Approximately a min later we lost all electrical power. We then left the air traffic area to try to determine what the problem was. The owner of the airplane went through the procedures to regain the electrical power, without success. At that time we decided a manual gear extension was required. We did have a handheld radio and we were able to contact a friend in another airplane and he contacted mmu tower to advise them of the situation. He also told them we were inbound with an electrical/gear problem. We could only hear the tower, not talk to them. In the pattern the tower asked us if we wanted a fly by, we waved our wings which indicated a yes. The tower told us the gear was only partially down. So the owner tried the manual gear extension again with success. We did another fly by and the tower said the gear appeared to be down. We then landed safely.

Original NASA ASRS Text

Title: PRIMARY LOSS OF ELECTRICAL PWR CREATES NEED FOR AN EMER GEAR PROC. ACFT EQUIP PROBLEM CREATES RADIO COM PROBLEM UNABLE TO ESTABLISH RADIO CONTACT.

Narrative: DID NORMAL RUN UP IN TWIN, ALL SYS CHKED NORMAL. I WAS R SEAT IN THE CAPACITY AS SAFETY PLT, WHEN WE TOOK OFF FROM MMU. EVERYTHING SEEMED NORMAL UNTIL I PUT THE GEAR SWITCH IN THE UP POS. AT THAT TIME I INFORMED THE OWNER THE NAV COM RADIOS WERE FADING OUT. APPROX A MIN LATER WE LOST ALL ELECTRICAL PWR. WE THEN L THE ATA TO TRY TO DETERMINE WHAT THE PROBLEM WAS. THE OWNER OF THE AIRPLANE WENT THROUGH THE PROCS TO REGAIN THE ELECTRICAL PWR, WITHOUT SUCCESS. AT THAT TIME WE DECIDED A MANUAL GEAR EXTENSION WAS REQUIRED. WE DID HAVE A HANDHELD RADIO AND WE WERE ABLE TO CONTACT A FRIEND IN ANOTHER AIRPLANE AND HE CONTACTED MMU TWR TO ADVISE THEM OF THE SITUATION. HE ALSO TOLD THEM WE WERE INBOUND WITH AN ELECTRICAL/GEAR PROBLEM. WE COULD ONLY HEAR THE TWR, NOT TALK TO THEM. IN THE PATTERN THE TWR ASKED US IF WE WANTED A FLY BY, WE WAVED OUR WINGS WHICH INDICATED A YES. THE TWR TOLD US THE GEAR WAS ONLY PARTIALLY DOWN. SO THE OWNER TRIED THE MANUAL GEAR EXTENSION AGAIN WITH SUCCESS. WE DID ANOTHER FLY BY AND THE TWR SAID THE GEAR APPEARED TO BE DOWN. WE THEN LANDED SAFELY.

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.

Primary loss of electrical power creates need for an emergency gear procedure. Aircraft equipment problem creates radio communication problem unable to establish radio contact.