A fokker 100 was dispatched in non compliance with a PIREP of right engine at 55% N1 on reversing.

Attributes
ACN	527524
Time
Date	200110
Day	Mon
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Fokker 100
Operating Under FAR Part	Part 121
Flight Phase	ground : maintenance ground : parked
Person 1
Affiliation	company : air carrier
Function	maintenance : technician
Qualification	technician : airframe technician : powerplant
Experience	maintenance technician : 14
ASRS Report	527524
Person 2
Affiliation	company : air carrier
Function	oversight : supervisor
Qualification	technician : powerplant technician : airframe
Events
Anomaly	aircraft equipment problem : critical maintenance problem : improper documentation non adherence : far non adherence : published procedure
Independent Detector	aircraft equipment other aircraft equipment : #2 engine n1 indicator
Resolutory Action	none taken : detected after the fact
Consequence	other
Factors
Maintenance	contributing factor : manuals performance deficiency : inspection performance deficiency : logbook entry
Supplementary
Problem Areas	Chart Or Publication Aircraft Maintenance Human Performance Flight Crew Human Performance
Primary Problem	Chart Or Publication

Narrative:

Engineering entry vague. I thought engine only approximately reached 55% N1. PIREP is not concise and maintenance manual paperwork is conflicting. Callback conversation with reporter revealed the following information: the reporter stated when the maintenance controller was advised of the logbook write-up of the 55% N1 in reverse and no published limits had been exceeded the controller advised clearing the item as noted. The reporter said the controller reported this airplane was being monitored for overspd in reverse thrust. The reporter stated as no engine overspd was noted in the logbook the item was cleared. The reporter said the airplane was a fokker 100 and it was the right engine being monitored.

Original NASA ASRS Text

Title: A FOKKER 100 WAS DISPATCHED IN NON COMPLIANCE WITH A PIREP OF R ENG AT 55% N1 ON REVERSING.

Narrative: ENGINEERING ENTRY VAGUE. I THOUGHT ENG ONLY APPROX REACHED 55% N1. PIREP IS NOT CONCISE AND MAINT MANUAL PAPERWORK IS CONFLICTING. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED WHEN THE MAINT CTLR WAS ADVISED OF THE LOGBOOK WRITE-UP OF THE 55% N1 IN REVERSE AND NO PUBLISHED LIMITS HAD BEEN EXCEEDED THE CTLR ADVISED CLRING THE ITEM AS NOTED. THE RPTR SAID THE CTLR RPTED THIS AIRPLANE WAS BEING MONITORED FOR OVERSPD IN REVERSE THRUST. THE RPTR STATED AS NO ENG OVERSPD WAS NOTED IN THE LOGBOOK THE ITEM WAS CLRED. THE RPTR SAID THE AIRPLANE WAS A FOKKER 100 AND IT WAS THE R ENG BEING MONITORED.

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.