A B727-200 after takeoff returned to the field due to a #1 engine strut overheat light caused by the...

Attributes
ACN	391181
Time
Date	199712
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : zzz
State Reference	US
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B727-200
Operating Under FAR Part	Part 121
Flight Phase	other
Flight Plan	None
Person 1
Affiliation	company : air carrier
Function	other personnel other
Qualification	other other : other
ASRS Report	391181
Person 2
Affiliation	company : air carrier
Function	other personnel other
Qualification	other other : other
ASRS Report	391166
Events
Anomaly	aircraft equipment problem : critical non adherence : far non adherence : published procedure other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa other other : unspecified cockpit
Resolutory Action	other
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

The work completed by myself: aircraft YYY had a 13 stage gasket that was worn under the flange area. I received write-up number pxyxy requesting to replace worn gasket per maintenance manual. I proceeded to remove all screws, bolts, and clamps needed to replace worn gasket. After replacing and checking the gap according to the maintenance manual I tightened all screws, bolts, and clamps. Inspection checked my work, found it to be per maintenance manual and bought the item. The problem is in-flight after the c-chk the overheat light came on, the aircraft turned back. The ground mechanic found the fire loop resting on the 8TH stage duct causing the overheat. Mechanic fixed the problem, sent the plane out to ZZZ. In-flight to ZZZ the overheat came on again, when the aircraft landed the ground mechanic found a clamp loose by the fire loop, sending heat onto the loop. I tightened the clamp when I did my job of replacing gasket. I feel the clamp loosened in-flight.

Original NASA ASRS Text

Title: A B727-200 AFTER TKOF RETURNED TO THE FIELD DUE TO A #1 ENG STRUT OVERHEAT LIGHT CAUSED BY THE OVERHEAT LOOP SENSOR LAYING ON A PNEUMATIC DUCT.

Narrative: THE WORK COMPLETED BY MYSELF: ACFT YYY HAD A 13 STAGE GASKET THAT WAS WORN UNDER THE FLANGE AREA. I RECEIVED WRITE-UP NUMBER PXYXY REQUESTING TO REPLACE WORN GASKET PER MAINT MANUAL. I PROCEEDED TO REMOVE ALL SCREWS, BOLTS, AND CLAMPS NEEDED TO REPLACE WORN GASKET. AFTER REPLACING AND CHKING THE GAP ACCORDING TO THE MAINT MANUAL I TIGHTENED ALL SCREWS, BOLTS, AND CLAMPS. INSPECTION CHKED MY WORK, FOUND IT TO BE PER MAINT MANUAL AND BOUGHT THE ITEM. THE PROB IS INFLT AFTER THE C-CHK THE OVERHEAT LIGHT CAME ON, THE ACFT TURNED BACK. THE GND MECH FOUND THE FIRE LOOP RESTING ON THE 8TH STAGE DUCT CAUSING THE OVERHEAT. MECH FIXED THE PROB, SENT THE PLANE OUT TO ZZZ. INFLT TO ZZZ THE OVERHEAT CAME ON AGAIN, WHEN THE ACFT LANDED THE GND MECH FOUND A CLAMP LOOSE BY THE FIRE LOOP, SENDING HEAT ONTO THE LOOP. I TIGHTENED THE CLAMP WHEN I DID MY JOB OF REPLACING GASKET. I FEEL THE CLAMP LOOSENED INFLT.

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 B727-200 after takeoff returned to the field due to a #1 engine strut overheat light caused by the overheat loop sensor laying on a pneumatic duct.