NTSB Identification: BFO85FA051.
The docket is stored on NTSB microfiche number 30046.
Accident occurred Friday, June 21, 1985 in COLLEGE PARK, MD
Aircraft: BELLANCA 17-30A, registration: N93533
Injuries: 2 Minor.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

BFR FLT, THE PLT OBTAINED FUEL SAMPLES THRU THE REMOTELY OPERATED GASCOLATOR, BUT DETECTED NO WATER. NO SAMPLES COULD BEDRAWN DIRECTLY FM THE WING OR FUSELAGE TANKS SINCE THEY HAD NO QUICK DRAINS INSTALLED. A PWR LOSS OCCURRED DRG TAKEOFF AT 50 TO 100 FT AGL. THE PLT SWITCHED FUEL TANKS (FROM L TO R MAIN) & ENGAGED THE BOOST PUMP. ENG PWR RETURNED AS THE ACFT STRUCK UTILITY LINES NEAR THE END OF THE RWY. THE ACFT THEN CRASHED & HIT A FENCE BFR COMING TO REST. A SIMILAR PWRLOSS OCCURRED APRX 3 WKS EARLIER. MAINT PSNL FOUND A LOOSE L TANK FUEL CAP WHICH COULD HAVE ALLOWED WATER TO LEAK INTO THIS TANK. A MECHANIC ADJUSTED THE FUEL CAP FOR A TIGHT FIT. THE ACFT WAS THEN FLOWN TWICE, PRIOR TO THE ACDNT, WITH NO EVIDENCE OF WATER IN THE FUEL OR OTHER DISCREPANCIES. HOWEVER, AFTER THE ACDNT, DIRECT ACCESS TO THE L MAIN TANK REVEALED THE PRESENCE OF WATER WHICH WAS COLORED PINK. PINK STAINS WERE ALSO PRESENT ON THE TANK WALL ABOVE THE AFT FUEL OUTLET PORT. THE OUTLET PORTS OF THE INTERCONNECTED MAIN TANK CELLS WERE 3/8 TO 1/2 INCH ABOVE THE TANK BOTTOMS.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

FUEL SYSTEM,CAP..LOOSE

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

FLUID,FUEL..CONTAMINATION

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

FLUID,FUEL..WATER

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

FUEL SYSTEM,DRAIN..INADEQUATE



Contributing Factors

LIGHT CONDITION..DARK NIGHT



Contributing Factors

OBJECT..FENCE


Contributing Factors

OBJECT..WIRE,TRANSMISSION



Contributing Factors

ACFT/EQUIP,INADEQUATE AIRCRAFT COMPONENT..MANUFACTURER

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