What was found
DAMAGE T: DURING JACK REACTION AND CENTER OF GRAVITY FOR NOSE LANDING GEAR STRUT SEAL REPLACEMENT, CRACK WAS FOUND FROM STA Y=371 TO Y=375 BTW LONG 30 TO LONG 29 RH AT EXTERNAL FUSELAGE SKIN IN REF AMDS 3221-4002. SUMMARY OF NRC 00084: EXTERNAL FUSELAGE SKIN FROM STA Y=371 TO Y=375 BTW LONG 30 TO LONG 29 RH WAS REPAIRED PER PRI 610692-14 REV 3 AND ER/A 610692-14 REV ORIGINAL SECTION I, PERMANET REPAIR. REPAIR APPROVAL IS LIMITED TO 12 MONTHS ONLY. ADDITIONAL ENGINEERING AUTHORIZATION (ER/A REVISION) IS REQUIRED FOR CONTINUED SERVICE BEYOND THIS LIMIT UNDER LP 2899516. (LP #2901218)