N348JB

Part: CLAMP — DEFECTIVE (ANTI ICE SYSTEM) · airframe 27,912 hrs · 18,559 cycles

FLT#16, JFK- BOS. (AIRCRAFT PERFORMED AN AIR TURN BACK TO JFK) ' DURING CLIMB THRU 10,000 FT, AI WING FAIL CAUTION MSG, FOLLOWED QRH AND MSG CLEARED BUT WE OBSERVED LEFT-WING TEMP DECREASING AS WE CLIMBED WE TURNED ON WING A-I AND MSG REAPPEARED WITH LEFT-WING -1C AND RIGHT-WING 56C; FOUND L/H WING ANTI-ICE SLAT HOSE CLAMP BETWEEN SLAT 2 AND 3 DEFECTIVE CAUSING LEAK. REMOVED AND REPLACED CLAMP REF AMM 30-11-06. OPS CHECK ACCOMPLISHED REF AMM 30-11-00. NO DEFECTS NOTED; OK FOR CONTINUED SERVICE.'

Part: FIRE WARNING — WARNING MESSAGE · airframe 26,964 hrs · 17,875 cycles

FLT#618, MSP-JFK.' CRG FIRE PROT FAULT EICAS; TROUBLESHOOT PER FIM TASK 26-15-00-810-804-A. NO FAULTS AT THIS TIME. OPS CHECK GOOD. THIS CLEARED MDDR 479075. MX-4 UPDATED.

Part: SKIN — CRACKED (LT WING LE) · airframe 24,291 hrs · 16,130 cycles

DURING HEAVY MAINTENANCE, CRACK FOUND ON LH WING FIXED LEADING EDGE BTW RIB 31 & 32 AND BTW RIB32 & 33; (REF TOMX NR W/O# 1596 NR# 000641 & 000642) R & R FIXED LEADING EDGE SKINS (2EA) BTW RIB 27-32 P/N: 190-31695-421 & BTW RIB 32-37 P/N: 190-31696-421 PER EMB 190 SRM 51-41-02, 51-42-02, &51-43-02

Part: SKIN — CRACKED (LT WING) · airframe 24,291 hrs · 16,130 cycles

DURING HEAVY MAINTENANCE, CRACK IN LOWER SKIN OF LH WING LOCATED AT RIB 10; (REF TOMX W/O# 1596 NR# 00057) LOWER SKIN OF LH WING LOCATED AT RIB 10 WAS REPAIRED PER SRM 57-10-01 REP 54.

Part: FLOOR SUPPORT — CORRODED (FRAMES 87-88) · airframe 24,291 hrs · 16,130 cycles

DURING HEAVY MAINTENANCE, FUSELAGE / CENTER FUSELAGE III / FLOOR STRUCTURE BEAMS AT FR87-88 AND Y-273 / CORROSION - PERMANENT REPAIR; THIS PERMANENT REPAIR HAS BEEN APPROVED VIA REF /2/ ETD (WITH ATTACHED ANAC FORM) AND IS CLASSIFIED AS MAJOR.

Part: POWER SUPPLY — NO TEST (EMERGENCY LIGHTS) · airframe 23,700 hrs · 15,822 cycles

FLT 1210, JAX-BOS. SEVERAL INTERIOR CABIN EMERGENCY LIGHTS WILL NOT ILLUMINATE DURING TEST. R & R ELPU NR 2, REF AMM 33-50-01. OPERATIONS TEST GOOD.

Part: LENS — CRACKED (EMERGENCY LIGHT) · airframe 23,114 hrs · 15,457 cycles

FT # 1251, HPN-RSW. LEFT LOWER EXTERNAL EMERGENCY EGRESS LIGHT LENS APPEARED CRACKED ( EXTERNAL EMERGENCY-OPS NOT CONDUCTED AT NIGHT ); R & R LH LOWER EMERGENCY LIGHT COVER ASSY PER E190 AMM 33-50-25. THIS CLEARS MDDR. MX-4 UPDATED. PLACARD REMOVED.

Part: SKIN — DENTED (FRAME 89) · airframe 22,584 hrs · 15,097 cycles

(HEAVY MAINTENANCE)DURING NORMAL OPERATIONS AT DCA ON 9/22/2019, N348JB (MSN 511) WAS REPORTED WITH A DENT AT THE CENTER FUSELAGE III FR 89 STGR 20-21R. THE DENT WAS MEASURED TO BE 129MM L X 73MM W AND AT DEEPEST POINT 2.44MM (SEE REF /1/ ETD FOR DETAILS). THE DEEPEST POINT ON FRAME 89 IS 1.74MM. PER REF /1/ SRM THE DENT IS OUT OF LIMITS DUE TO BEING ON A FRAME AND NOT IN THE BAY AREA. CURRENT STATION LIMITATIONS DO NOT HAVE HFEC INSPECTION AVAILABLE. THERE IS LIMITED TO NO ACCESS AT AFT BULKHEAD AFT CARGO FOR INTERNAL INSPECTION, TO INCLUDE NO ACCESS UNDER OR AROUND WATER STORAGE TANK AND ASSOCIATED WATER/WASTE LINES. AT THE AFT AVIONICS BAY, THE AVIONICS RACK AND WIRING BUNDLES PROHIBIT ACCESS. EMBRAER WAS CONTACTED FOR RELIEF AND PROVIDED 50 FC RELIEF TO PERFORM HFEC INSPECTION, AND INTERNAL DVI TO BE PERFORMED WITHIN 200FC AND REPORT BACK ANY FINDINGS. N348JB IS AT CURRENT (11/2019) HEAVY CHECK AT SAL, AND TIME LIMITED REPAIR DISPOSITION FOR A DENT LOCATED COMMON TO THE CENTER FUSELAGE III LOWER SKIN (PN 170-91883-005) AND SHEAR CLIP (PN 170-66854-001) AT FR90 AND BETWEEN STGR-23R AND STGR-25R NEEDED TO BE UPGRADED TO A PERMANENT REPAIR CONDITION. EMBRAER ASSESSED AND ACCEPTED A PERMANENT REPAIR BY MEANS OF REF /4/ ETD. THE REPAIR CONSISTED OF DRESSING OUT THE DENTED AREA, REPLACING THE DAMAGED SHEAR CLIP AND PERFORMING NDT INSPECTIONS. EC E19-693-01 PROVIDED TEMPORARY REPAIR INSTRUCTIONS TO PERFORM EXTERNAL DVI. A MDDR ITEM WILL BE TRACKED TO PERFORM HFEC INSPECTION WITHIN 50 FC. EC E19-693-02 INSTRUCTS TO PERFORM AN INTERNAL DVI WITHIN 200 FC AND FINDINGS TO BE REPORTED. REF /3/ ETD PROVIDED FOR EXTENSION OF INTERNAL INSPECTION TO 225FC. THIS EC E19-693-03 PROVIDES PERMANENT REPAIR INSTRUCTIONS; EMBRAER APPROVED THIS PERMANENT REPAIR PER REF /4/ ETD AND IS CLASSIFIED AS MAJOR.

Part: SKIN — DENTED (FRAMES 11-13) · airframe 21,427 hrs · 14,243 cycles

DURING OOS VISIT, 2 DENTS WERE FOUND ON THE EXTERNAL SKIN PN 170-03344-005 & 170-03705-007 BTWN FR11-13 & STGR 4L-5L AT THE FWD FUSELAGE. SEE ATTACHED REF /1/ EA FOR MORE DETAILS. THE DENTS WERE FOUND TO BE OUTSIDE OF SRM ALLOWABLE LIMITS AND THERE’S NO PERMANENT REPAIR APPLCAIBLE FOR THIS TYPE OF DAMAGE. THE DENTS WERE DRESSED OUT AND OIL CANNING CONDITION WAS OBSERVED AT ONE LOCATION. VQQ CONTACTED EMBRAER AND WAS PROVIDED REF /2/ ETD WITH PERMANENT REPAIR INSTRUCTIONS CONSISTS OF DENT DRESS OUT, NDT INSPECTIONS, FABRICATE & INSTALL A REPAIR ANGLE AND RESTORE SURFACE PROTECTION PER SRM. THIS EC E19-395-01 ACCOMPLISHES PERMANENT REPAIR PER THE REF /1/ EA & REF /2/ ETD WITHOUT DEVIATIONS; THIS PERMANENT REPAIR IS APPROVED VIA REF /2/ ETD & REF /3/ ANAC FORM AND IS CLASSIFIED AS “MAJOR”.

Part: FLOOR SUPPORT — CORRODED (FRAME 83) · corrosion level 2 · airframe 17,571 hrs · 11,535 cycles

DURING HEAVY MAINTENANCE, CORROSION WAS DISCOVERED ON CENTER FUSELAGE FLOOR SUPPORT, LBL 39, FRAME 83. FOUND OUT OF LIMITS IAW SRM PART 51-7516, PARA 4, REV 36. THE FLOOR SUPPORT WAS REPLACED IAW SRM 51-41-02, REV 36.

Part: FINGER DOUBLER — CORRODED (FRAMES 79-80) · corrosion level 2 · airframe 17,571 hrs · 11,535 cycles

DURING HEAVY MAINTENANCE, CORROSION WAS DISCOVERED ON ON AFT CARGO DOORWAY SURROUNDING STRUCTURE CORROSION FOUND AT AFT FINGER PLATE DOUBLER BTW FRAME 79 TO FR 80 AND BTW STRINGER 26R TO STRINGER 27R; REF AAR NR 53-244 AFT CARGO DOOR CUTOUT STRUCTURE BTW FR 79-80, STR 26 -27R. AFT FINGER PLATE REPLACED IAW SRM II 51-43-04 REV 36. PN 170-85207-001.

Part: FINGER DOUBLER — CORRODED (FRAMES 77-78) · corrosion level 2 · airframe 17,571 hrs · 11,535 cycles

DURING HEAVY MAINTENANCE, CORROSION WAS DISCOVERED ON AFT CARGO DOORWAY SURROUNDING STRUCTURE, FOUND THE FWD FINGER PLATE DOUBLER BETWEEN FRAMES 77 TO 78, STRINGERS 26R TO 27R AFT CARGO DOOR CUTOUT FINGER DOUBLER WAS REPLACED IAW SRM 51-43-04, REV 36.

Part: FLOOR SUPPORT — CORRODED (FRAME 88) · corrosion level 2 · airframe 17,571 hrs · 11,535 cycles

DURING HEAVY MAINTENANCE, CORROSION WAS DISCOVERED ON THE CENTER FLOOR SUPPORT, RBL 11, FRAME 88. THE FLOOR WAS REPLACED IAW SRM 51-41-01, 51-43-03, AND 51-43-04, REV 36.

Part: SEAT TRACK — CORRODED (FRAME 13) · corrosion level 2 · airframe 17,571 hrs · 11,535 cycles

DURING HEAVY MAINTENANCE, CORROSION WAS DISCOVERED ON FWD FUSELAGE FLOOR STRUCTURE, AT RBL 11 AND FR 13 + 5". CORROSION FOUND ON SEAT TRACK PREVIOUS REPAIR; REF AAR NR 53-367 AT FWD FUSELAGE FLOOR STRUCTURE, AT RBL 11 AND FR 13 +5'". SEAT TRACK REPAIRED IAW ETD 2018 -190-013057 AND JB EC E 18-087-01.

Part: DOUBLER — CORRODED (FUSELAGE) · airframe 17,572 hrs · 11,536 cycles

DURING THE BASIC CHECK AT YRQ, DATED 02/18, FOUND CORROSION ON A PREVIOUS REPAIR DOUBLER PER REF /1/ RT SEAT TRACK FR13-14, RBL 11.00” TO RBL 11.40” SEE REF/1/ AND REF/3/ ETD FOR DETAILS. WAS CONTACTED WITH THE PROPOSAL TO RE-ACCOMPLISH THE REPAIR DOUBLER. THIS EC E18-087-01 INCORPORATES THE PERMANENT REPAIR PER REF /3/ ETD WITHOUT DEVIATION. EC E18-087-02 PROVIDES THE POST REPAIR INSPECTION REQUIREMENTS PER REF /3/ ETD (TASK 53-10-027-0001-INTERNAL GVI, THRESHOLD: 20,000 FC (COUNTED SINCE NEW), INTERVAL: 20,000 FC); THIS REPAIR HAS BEEN APPROVED VIA THE REFS /3/ ETD (ETD 2018-190-013057). THIS IS CLASSIFIED AS A MAJOR / PERMANENT REPAIR, WITH POST REPAIR INSPECTIONS.

Part: BLEED VALVE — FAILED (RT ENGINE) · airframe 16,714 hrs · 10,938 cycles

RETURN TO FIELD. NR 2 BLEED LEAK. FOLLOWED QRH, LEAK MESSAGE EXTINGUISHED. TROUBLESHOT IAW FIM 36-11-00-810-837. RT ENGINE HIGH STAGE BLEED VALVE LEAKING. R & R THE BLEED VALVE IAW AMM 36-11-01. PERFORMED ENGINE RUNS IAW AMM 71-00-01. NO CURRENT FAULTS. ACFT OK FOR RETURN TO SERVICE.

Part: CONTROL MODULE — FAILED (BRAKES) · airframe 5,291 hrs · 3,308 cycles

AFTER GEAR EXTENSION, LT/ RT BREAK FAULT EICAS MESSAGE INTERMITTENT FAULT. GO AROUND WAS EXECUTED AND MESSAGE EXTINGUISHED. AFTER LANDING ON TAXI, INBD BRAKES INOPERATIVE. R & R AUTO BRAKE CONTROL MODULE IAW 32-41-02, OPS CKS ALL NORMAL.

Part: TRANSMITTER — FAILED (NR 2 ENGINE) · airframe 3,846 hrs · 2,312 cycles

FLT 940 MCO-BOS, CREW DECLARED AN EMERGENCY AND AIRCRAFT DIVERTED TO JAX DUE TO RIGHT ENG OIL PRESSURE WENT TO ZERO FIVE TIMES. FIRST THREE TIMES IT WAS MOMENTARY, LAST TWO TIMES FOR 2-3 MINUTES. ALL OTHER INDICATIONS NORMAL. REMOVED AND REPLACED NR 2 ENG OIL PRESS TRANSMITTER IAW EMM 77-00-00. ALL CHECKS NORMAL AND NO LEAKS NOTED AT THIS TIME.

Part: PUMP — LEAKING (NR 2) · airframe 772 hrs · 451 cycles

FLT 1242 CLT-BOS, CREW DECLARED EMERGENCY DUE TO HYDRAULIC 2 LOW PRESSURE IN FLIGHT. RAN QRC/QRH, AIRCRAFT WAS TOWED TO THE GATE DUE TO HYDRAULIC SYSTEM 2 LOSS. REMOVED AND REPLACED NR 2 ENGINE EDP PER AMM 29-11-01. REMOVED AND REPLACED NR 2 HYD SYS PRESS, RETURN AND CASE DRAIN FILTERS PER AMM 29-11-05. COMPLIED WITH EDP INSPECTION CHECK PER AMM 05-50-23. SERVICED HYD TO FULL, OPS AND LEAK CHECK GOOD.