Instructor, with student flying the aircraft, had a propeller strike on a runway end light when the brakes failed and they went off the end of the runway during landing.

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Attributes
ACN	420914
Time
Date	199811
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : sql
State Reference	CA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : instructional
Make Model Name	PA-28 Cherokee/Archer II/Dakota/Pillan/Warrior
Flight Phase	landing other
Flight Plan	None
Person 1
Affiliation	Other
Function	flight crew : single pilot instruction : instructor
Experience	controller non radar : 8 controller radar : 2 flight time total : 975
ASRS Report	420914
Person 2
Affiliation	Other
Function	flight crew : single pilot instruction : trainee
Events
Anomaly	aircraft equipment problem : critical conflict : ground critical other anomaly other anomaly other other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	other
Supplementary
Air Traffic Incident	other

Narrative:

Myself and my student landing on runway 30. My student at controls, touches down 750-1000 ft for a full stop landing. My student had brakes for 500-750 ft. I applied brakes to assist, brakes then failed. I then used aerodynamic braking to stop the last 500 ft of runway. We stopped 5-10 ft past the threshold. The propeller hit a threshold light. When I realized we had no brakes, there was no room for takeoff. Pictures were taken within mins. No skid marks on the runway. I am now told this piper PA28-161 may have a shuttle valve in the brake system.

Original NASA ASRS Text

Title: INSTRUCTOR, WITH STUDENT FLYING THE ACFT, HAD A PROP STRIKE ON A RWY END LIGHT WHEN THE BRAKES FAILED AND THEY WENT OFF THE END OF THE RWY DURING LNDG.

Narrative: MYSELF AND MY STUDENT LNDG ON RWY 30. MY STUDENT AT CTLS, TOUCHES DOWN 750-1000 FT FOR A FULL STOP LNDG. MY STUDENT HAD BRAKES FOR 500-750 FT. I APPLIED BRAKES TO ASSIST, BRAKES THEN FAILED. I THEN USED AERODYNAMIC BRAKING TO STOP THE LAST 500 FT OF RWY. WE STOPPED 5-10 FT PAST THE THRESHOLD. THE PROP HIT A THRESHOLD LIGHT. WHEN I REALIZED WE HAD NO BRAKES, THERE WAS NO ROOM FOR TKOF. PICTURES WERE TAKEN WITHIN MINS. NO SKID MARKS ON THE RWY. I AM NOW TOLD THIS PIPER PA28-161 MAY HAVE A SHUTTLE VALVE IN THE BRAKE SYS.

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.