What was found
FLIGHT LEVEL 250, RT PACK WENT OFF LINE AND RT 10TH STAGE SHUTOFF VALVE WOULD NOT OPEN. DESCENDED TO 10,000 FT AND TRANSFERRED RT PACK TO APU. EMERGENCY DECLARED.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FLIGHT LEVEL 250, RT PACK WENT OFF LINE AND RT 10TH STAGE SHUTOFF VALVE WOULD NOT OPEN. DESCENDED TO 10,000 FT AND TRANSFERRED RT PACK TO APU. EMERGENCY DECLARED.