|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Local Time Of Day||1201 To 1800|
|Locale Reference||airport : zzz.airport|
|Altitude||msl bound lower : 1500|
msl bound upper : 6000
|Operator||general aviation : personal|
|Make Model Name||S-2 All Series|
|Operating Under FAR Part||Part 91|
|Function||observation : passenger|
|Qualification||pilot : atp|
pilot : cfi
|Experience||flight time last 90 days : 150|
flight time total : 5500
flight time type : 1
|Function||flight crew : single pilot|
|Independent Detector||other flight crewa|
|Resolutory Action||flight crew : regained aircraft control|
|Problem Areas||Passenger Human Performance|
Flight Crew Human Performance
I was a passenger on an aerobatic flight. The pilot entered a controled power-off upright spin to the left at 6000 ft MSL. After the spin developed; the pilot applied right aileron to accelerate the spin. I can't remember if I was following through on the controls with the pilot or not. I heard the pilot announce that he was initiating the emergency spin recovery technique that we had briefed on the ground. The aircraft continued to spin to the left. I then heard the pilot command me to bail-out and I felt the canopy leave the aircraft. I attempted to release my 5 point harness; but was felt that it was not releasing for some reason. After some period of time; I realized that the harness was indeed released and I started to reach for the upper wing to pull myself out of the cockpit. At this time the aircraft recovered from the spin and I stopped trying to exit the aircraft. I looked behind me to ensure that the pilot had not bailed out; and he flew the aircraft back to the airport for an uneventful landing. After the incident was over; I realized that I had indeed released my harness on the first attempt; but had mistaken the feel of the taut parachute straps for the harness. In the future; before every aerobatic flight as a passenger; I will brief and rehearse the bail-out procedures with the PIC.
Original NASA ASRS Text
Title: PLT OF AEROBATIC BIPLANE LOSES CTL OF ACFT DURING SPIN. EJECTS CANOPY AND ORDERS PAX RPTR TO BAIL OUT. BEFORE EITHER LEAVES THE ACFT; IT SELF-RECOVERS FROM THE SPIN.
Narrative: I WAS A PAX ON AN AEROBATIC FLT. THE PLT ENTERED A CTLED PWR-OFF UPRIGHT SPIN TO THE L AT 6000 FT MSL. AFTER THE SPIN DEVELOPED; THE PLT APPLIED R AILERON TO ACCELERATE THE SPIN. I CAN'T REMEMBER IF I WAS FOLLOWING THROUGH ON THE CTLS WITH THE PLT OR NOT. I HEARD THE PLT ANNOUNCE THAT HE WAS INITIATING THE EMER SPIN RECOVERY TECHNIQUE THAT WE HAD BRIEFED ON THE GND. THE ACFT CONTINUED TO SPIN TO THE L. I THEN HEARD THE PLT COMMAND ME TO BAIL-OUT AND I FELT THE CANOPY LEAVE THE ACFT. I ATTEMPTED TO RELEASE MY 5 POINT HARNESS; BUT WAS FELT THAT IT WAS NOT RELEASING FOR SOME REASON. AFTER SOME PERIOD OF TIME; I REALIZED THAT THE HARNESS WAS INDEED RELEASED AND I STARTED TO REACH FOR THE UPPER WING TO PULL MYSELF OUT OF THE COCKPIT. AT THIS TIME THE ACFT RECOVERED FROM THE SPIN AND I STOPPED TRYING TO EXIT THE ACFT. I LOOKED BEHIND ME TO ENSURE THAT THE PLT HAD NOT BAILED OUT; AND HE FLEW THE ACFT BACK TO THE ARPT FOR AN UNEVENTFUL LNDG. AFTER THE INCIDENT WAS OVER; I REALIZED THAT I HAD INDEED RELEASED MY HARNESS ON THE FIRST ATTEMPT; BUT HAD MISTAKEN THE FEEL OF THE TAUT PARACHUTE STRAPS FOR THE HARNESS. IN THE FUTURE; BEFORE EVERY AEROBATIC FLT AS A PAX; I WILL BRIEF AND REHEARSE THE BAIL-OUT PROCS WITH THE PIC.
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.