A FOKKER 100 RPTED ACFT DID NOT GO TO CLB PWR WHEN SELECTED AFTER TKOF AND MECHS CHKED THE THRUST MGMNT COMPUTER OK PER THE MAINT MANUAL. FAA SAFETY INSPECTOR QUESTIONS WHY THE ACFT NOT DOWNGRADED TO CAT II STATUS AND NOT REMOVED FROM AUTOLAND STATUS.

Date: 1998-11 · Aircraft: Fokker 100

Anomalies: aircraft-equipment-problem-less-severe|other-unspecified

Synopsis

A FOKKER 100 RPTED ACFT DID NOT GO TO CLB PWR WHEN SELECTED AFTER TKOF AND MECHS CHKED THE THRUST MGMNT COMPUTER OK PER THE MAINT MANUAL. FAA SAFETY INSPECTOR QUESTIONS WHY THE ACFT NOT DOWNGRADED TO CAT II STATUS AND NOT REMOVED FROM AUTOLAND STATUS.

Narrative

ACFT ARRIVED ZZZ WITH PIREP #XO AND NOV/XZ/98. THROTTLES DID NOT GO TO CLB PWR WHEN SELECTED AFTER TKOF. ACTION TAKEN WAS PERFORMED AUTOTHROTTLE SERVO AND AUTOTHROTTLE SWITCH DISCONNECT. GND TEST SYS PASSED; NO DEFECTS NOTED. FAA CALLED ON DEC/XX/98 XB00 AND WANTED TO KNOW IF LOWER MINIMUM PROGRAM SHOULD BE DOWNGRADED. MEL ONLY REQUIRES DOWNGRADING IF 1 OF 2 AUTOTHROTTLES IS INOP. THE AUTOTHROTTLES WERE NEVER DOWNGRADED ORIGINALLY; AND NEITHER AUTOTHROTTLES WERE INOP; THEREFORE LOWER MINIMUM PROGRAM WAS NOT REQUIRED TO BE DOWNGRADED. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE PIREP WAS WORKED PER THE MAINT MANUAL AND THE THRUST MGMNT COMPUTER WAS TESTED AND IT PASSED. THE RPTR SAID PER THE MAINT MANUAL; IF THE TEST IS OK; CLR THE ITEM. THE RPTR SAID THE LOGBOOK OR THE MAINT HISTORY WAS NOT REVIEWED FOR PREVIOUS RPTS ON THE AUTOFLT OR THE AUTOTHROTTLE SYS. THE RPTR SAID THIS STATION ZZZ DOES NOT HAVE AVIONICS MECHS AND OUR TRAINING ON THESE SYS IS VERY LIMITED.

Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.