GA small transport fuel exhaustion on right engine while on a training flight.

Attributes
ACN	117373
Time
Date	198907
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : sdl airport : cgz
State Reference	AZ
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Small Transport, Low Wing, 2 Recip Eng
Flight Phase	descent : approach other
Flight Plan	None
Person 1
Affiliation	Other
Function	flight crew : first officer instruction : instructor oversight : pic
Qualification	pilot : cfi pilot : instrument pilot : commercial
Experience	flight time last 90 days : 300 flight time total : 8000
ASRS Report	117373
Person 2
Affiliation	Other
Function	instruction : trainee
Events
Anomaly	non adherence : far other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : declared emergency none taken : anomaly accepted none taken : unable
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

As the CFI and PIC, I did not check fuel supply visually, as this is not easy to do on an small transport, due to fuel cap location and dihedral. The student/owner assured me he had refueled on wednesday, and only one flight lasting 1.3 hours occurred prior to our flight. The small transport burns approximately 45-50 gals per hour and capacity is 202 usable on this version, therefore, 202 divided by 50 equals 4 hours. We should have had 2.7 hours fuel on board according to owner. We departed scottsdale at around XA50, the #1 engine stopped at around XC25. We feathered #1 and landed at around XC30 at casa grande municipal without further incident. (Declared an emergency on 122.7, and other aircraft in the area gave way.) the fuel gauges showed half tanks to 5/8 tanks prior to departing scottsdale airport and both fuel gauges showed 3/8 to half when #1 stopped. However, the left tank took 104.2 gals and the right tank took 92.6 gals, both tanks topped. I reported this to the FAA/FSDO at XE15 this date at the scottsdale office. I recommend the owner keep more reliable records of fuel purchases and times.

Original NASA ASRS Text

Title: GA SMT FUEL EXHAUSTION ON RIGHT ENGINE WHILE ON A TRAINING FLT.

Narrative: AS THE CFI AND PIC, I DID NOT CHECK FUEL SUPPLY VISUALLY, AS THIS IS NOT EASY TO DO ON AN SMT, DUE TO FUEL CAP LOCATION AND DIHEDRAL. THE STUDENT/OWNER ASSURED ME HE HAD REFUELED ON WEDNESDAY, AND ONLY ONE FLT LASTING 1.3 HOURS OCCURRED PRIOR TO OUR FLT. THE SMT BURNS APPROX 45-50 GALS PER HOUR AND CAPACITY IS 202 USABLE ON THIS VERSION, THEREFORE, 202 DIVIDED BY 50 EQUALS 4 HOURS. WE SHOULD HAVE HAD 2.7 HOURS FUEL ON BOARD ACCORDING TO OWNER. WE DEPARTED SCOTTSDALE AT AROUND XA50, THE #1 ENGINE STOPPED AT AROUND XC25. WE FEATHERED #1 AND LANDED AT AROUND XC30 AT CASA GRANDE MUNI WITHOUT FURTHER INCIDENT. (DECLARED AN EMER ON 122.7, AND OTHER ACFT IN THE AREA GAVE WAY.) THE FUEL GAUGES SHOWED HALF TANKS TO 5/8 TANKS PRIOR TO DEPARTING SCOTTSDALE ARPT AND BOTH FUEL GAUGES SHOWED 3/8 TO HALF WHEN #1 STOPPED. HOWEVER, THE LEFT TANK TOOK 104.2 GALS AND THE RIGHT TANK TOOK 92.6 GALS, BOTH TANKS TOPPED. I REPORTED THIS TO THE FAA/FSDO AT XE15 THIS DATE AT THE SCOTTSDALE OFFICE. I RECOMMEND THE OWNER KEEP MORE RELIABLE RECORDS OF FUEL PURCHASES AND TIMES.

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.