<< >> NASA ASRS Report 752876, September 2007

A piper PA22-150 caribbean aircraft in-flight fire had started and passenger jumped out on ground roll. Hole in exhaust caused brake fluid to burn.

Attributes
ACN	752876
Time
Date	200709
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : zzz.airport
State Reference	US
Environment
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	PA-18/19 Super Cub
Operating Under FAR Part	Part 91
Flight Phase	descent : approach landing : roll
Flight Plan	None
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : private
Experience	flight time last 90 days : 20 flight time total : 400 flight time type : 50
ASRS Report	752876
Events
Anomaly	aircraft equipment problem : critical other anomaly
Independent Detector	other other : 1
Resolutory Action	none taken : unable other
Consequence	other other
Factors
Maintenance	contributing factor : briefing performance deficiency : inspection performance deficiency : installation performance deficiency : training
Supplementary
Problem Areas	Maintenance Human Performance Aircraft
Primary Problem	Maintenance Human Performance

Narrative:

Reattached scat tubing with non-aircraft hose clamp. In-flight fire started and passenger jumped out on ground roll. Later learned that the tubing and clamp had not caused the fire. Hole in exhaust caused brake fluid to burn. Callback conversation with reporter revealed the following information: reporter stated the flexible 'scat' type brake line is routed down along the fwd side of the firewall to the parking brake and down to the brakes. He was informed by maintenance that the hole in the engine exhaust pipe had blown hot exhaust onto the flex line; eventually burning through the brake line and causing the brake fluid to catch fire.

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Original NASA ASRS Text

Title: A PIPER PA22-150 CARIBBEAN ACFT IN-FLIGHT FIRE HAD STARTED AND PASSENGER JUMPED OUT ON GROUND ROLL. HOLE IN EXHAUST CAUSED BRAKE FLUID TO BURN.

Narrative: REATTACHED SCAT TUBING WITH NON-ACFT HOSE CLAMP. INFLT FIRE STARTED AND PAX JUMPED OUT ON GND ROLL. LATER LEARNED THAT THE TUBING AND CLAMP HAD NOT CAUSED THE FIRE. HOLE IN EXHAUST CAUSED BRAKE FLUID TO BURN. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: REPORTER STATED THE FLEXIBLE 'SCAT' TYPE BRAKE LINE IS ROUTED DOWN ALONG THE FWD SIDE OF THE FIREWALL TO THE PARKING BRAKE AND DOWN TO THE BRAKES. HE WAS INFORMED BY MAINT THAT THE HOLE IN THE ENGINE EXHAUST PIPE HAD BLOWN HOT EXHAUST ONTO THE FLEX LINE; EVENTUALLY BURNING THROUGH THE BRAKE LINE AND CAUSING THE BRAKE FLUID TO CATCH FIRE.

Data retrieved from NASA's ASRS site as of January 2009 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.