As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FIRE WARNING BELL CAME ON IMMED AFT T/O. ENG FIRE AND WHEEL WELL FIRE SYS TEST NORMAL. APU FIRE SYS DID NOT. INSP APU FIRE SYS AND APU. FOUND SYS TO TEST NORM AND NO PROBLEMS IN THE APU AREA. TEST APU SEVERAL TIMES AND SYS CK GOOD. OK FOR SERVICE. ALL ENG TEST GOOD.