A commercial fixed wing aircraft was dispatched with some confusion over the cycles remaining before...

Attributes
ACN	430567
Time
Date	199903
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Person 1
Affiliation	company : air carrier
Function	other personnel
Qualification	other
ASRS Report	430567
Person 2
Affiliation	company : air carrier
Function	other personnel other
Qualification	technician : powerplant technician : airframe
Events
Anomaly	aircraft equipment problem : critical non adherence : company policies non adherence : published procedure non adherence other
Independent Detector	other flight crewa other flight crewb
Resolutory Action	none taken : detected after the fact
Consequence	other
Factors
Maintenance	contributing factor : schedule pressure performance deficiency : scheduled maintenance performance deficiency : inspection
Supplementary
Problem Areas	Company Aircraft Maintenance Human Performance
Primary Problem	Aircraft

Narrative:

It is my understanding that the aircraft had arrived ZZZ the previous evening with a compressor stall write-up for both engines. ZZZ maintenance procedures require further checks, including borescope analysis for both engines. ZZZ maintenance called the aircraft router and requested via ZZZ aircraft router to have them ground interrupt. Due to the lateness of this request, ZZZ router was unable to get in touch with the flight prior to takeoff. ZZZ router called me moments after takeoff to inform me that to forward maintenance request to radio patch the captain to air carrier technical services. Meanwhile, ZZZ aircraft routers removed xyz from the computer record for flight wvvv and inserted abc, effectively inhibiting ACARS capability. I called air carrier technician and spoke with wywy. He consulted the manager in ZZZ, who is charged with the responsibility of making legality rulings. We determined that aircraft xyz ZZZ-yyc was operating safely in ship xyz. Aircraft xyz did not need to return to ZZZ and could continue on to yyc. The aircraft would be able to fly the next leg out of yyc. We did not require a phone patch with the captain. The reasoning was that while the borescope inspection was needed, a few cycles were permitted in the interim.

Original NASA ASRS Text

Title: A COMMERCIAL FIXED WING ACFT WAS DISPATCHED WITH SOME CONFUSION OVER THE CYCLES REMAINING BEFORE A REQUIRED BORESCOPE INSPECTION IS ACCOMPLISHED.

Narrative: IT IS MY UNDERSTANDING THAT THE ACFT HAD ARRIVED ZZZ THE PREVIOUS EVENING WITH A COMPRESSOR STALL WRITE-UP FOR BOTH ENGS. ZZZ MAINT PROCS REQUIRE FURTHER CHKS, INCLUDING BORESCOPE ANALYSIS FOR BOTH ENGS. ZZZ MAINT CALLED THE ACFT ROUTER AND REQUESTED VIA ZZZ ACFT ROUTER TO HAVE THEM GND INTERRUPT. DUE TO THE LATENESS OF THIS REQUEST, ZZZ ROUTER WAS UNABLE TO GET IN TOUCH WITH THE FLT PRIOR TO TKOF. ZZZ ROUTER CALLED ME MOMENTS AFTER TKOF TO INFORM ME THAT TO FORWARD MAINT REQUEST TO RADIO PATCH THE CAPT TO ACR TECHNICAL SVCS. MEANWHILE, ZZZ ACFT ROUTERS REMOVED XYZ FROM THE COMPUTER RECORD FOR FLT WVVV AND INSERTED ABC, EFFECTIVELY INHIBITING ACARS CAPABILITY. I CALLED ACR TECHNICIAN AND SPOKE WITH WYWY. HE CONSULTED THE MGR IN ZZZ, WHO IS CHARGED WITH THE RESPONSIBILITY OF MAKING LEGALITY RULINGS. WE DETERMINED THAT ACFT XYZ ZZZ-YYC WAS OPERATING SAFELY IN SHIP XYZ. ACFT XYZ DID NOT NEED TO RETURN TO ZZZ AND COULD CONTINUE ON TO YYC. THE ACFT WOULD BE ABLE TO FLY THE NEXT LEG OUT OF YYC. WE DID NOT REQUIRE A PHONE PATCH WITH THE CAPT. THE REASONING WAS THAT WHILE THE BORESCOPE INSPECTION WAS NEEDED, A FEW CYCLES WERE PERMITTED IN THE INTERIM.

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.

A commercial fixed wing aircraft was dispatched with some confusion over the cycles remaining before a required borescope inspection is accomplished.