N403YK
Registered owner: NORTHERN AIR CARGO LLC, AK (owner ≠ operator)
Operators of this aircraft
Who operated this tail, and how firmly we know it.
No operator established for this aircraft.
Accident & incident history
No NTSB accidents or incidents on file for this aircraft.
Maintenance disclosures
Service Difficulty Reports filed with the FAA for this airframe. Filing is largely voluntary — the number of reports is not a measure of reliability. To verify a report, search its control number at the FAA SDRS site.
53 reports on file, 2020-05-18 – 2024-08-27.
Part: SKIN — CRACKED (ZONE 100) · airframe 64,086 hrs · 44,096 cycles
WHILE PERFORMING A DVI FOR AN UNRELATED EO, FOUND A 7/8 INCH FUSELAGE SKIN CRACK BELOW STR 22L AND BS 7278+2 3/8, CONFIRMED WITH EDDY CURRENT. ACCOMPLISHED EO 737-53-0360, REFERENCE ATTACHED PROJECT WORKSHEET.
Part: BATTERY PACK — DISCHARGED (EMERGENCY LIGHTS) · airframe 63,646 hrs · 43,186 cycles
RECHARGE EMERGENCY LIGHTS BATTERY PACKS , FOUND EMERGENCY LIGHTS BATTERY PACK MALFUNCTION , PACK:M01132. REPLACE THE EMER BATTERY PACK AND TEST NORMAL REF AMM 33-51-51-962-015 REV98
Part: BATTERY — DISCHARGED (EMERGENCY LIGHTS) · airframe 63,646 hrs · 43,186 cycles
RECHARGE EMERGENCY LIGHTS BATTERY PACKS , FOUND EMERGENCY LIGHTS BATTERY PACK MALFUNCTION , PACK:M01133. REPLACE THE EMER BATTERY PACK AND TEST NORMAL REF AMM 33-51-51-962-015 REV98
Part: SEAT TRACK — CRACKED (COCKPIT) · airframe 63,646 hrs · 43,186 cycles
PILOT SEAT TRACK CRACK ONÂ FWD INBORD, LOCATED END OF TRACK AROUND FWD STOP SCREW HOLE. 1. REMOVE PILOT SEAT CRACK TRACK 2. INSTALL PILOT SEAT NEW TRACK COMPLETED REF: AMM 53-42-00 P1. 20-50-11 PAGE 201 R98 PME: 006162 DUE DATE: JUL 06 2024
Part: SKIN — CRACKED (NR 3 SLAT) · airframe 63,646 hrs · 43,186 cycles
THE CRACK WAS FOUND AT #3 SLAT OUTER SKIN SS.S. 88.4 AND S.S. 94.4 AREA. PERFORMED REPAIR AT #3 SLAT OUTER SKIN 55.88.4 & 94.4 AREA. I.A.W. B737-400 SSRM 57-43-01 REPAIR 6 PAGE 201-205 (REV.115) & DMG 65C26603
Part: SKIN — CRACKED (BS 380) · airframe 63,646 hrs · 43,186 cycles
ACCORDING TO AD 2019-08-03 INTERNAL OPEN HOLE HFEC INSPECTION , 2 EA FASTENERS HOLE SKIN CRACKED(UP L: 0.4" LOWER L:0.35") AT BS380 IB CHORD BETWEEN S20L AND S21L. REPAIRED DAMAGED CHORD AT BS 380L BETWEEN STRANGER S21 & S22 AS PER NAC EO 737-53-3507 REV. IR SEE ATTACHED.
Part: SKIN — DENTED (BS 1148 RBL4) · airframe 63,646 hrs · 43,186 cycles
DENT (3.2" X 2.0" IN AREA, MAX. DEPTH= 0.080") AT BS STA 1148, RBL+4". PERFORM PERMANENT REPAIR AT BS STA 1148 RBL+4" PER NAC EO737-53-0336
Part: WEB — CRACKED (BS 710) · airframe 63,646 hrs · 43,186 cycles
A CRACK AT WEB FASTERNER HOLE, STA 710 LBL 0.07, LENTH:0.250". 1. REMOVE THE STIFFENER & FILLER 2. CUT-OUT THE WEB FROM DAMAGED AREA 3. INSTALL REPAIR KIT (NEW, DOACER & WEB) 4. ALL ASSY REINSTALL WITH SEALANT PER: SB 737-57-1210 FIG 5 PAGE 86, PEMCO EA PD 37-53-3512, REV IR AND FAA 8110-3 REF PD-37-53-3512 REV IR
Part: SKIN — CORRODED (LT WING) · corrosion level 2 · airframe 63,646 hrs · 43,186 cycles
DURING NRC:CA1528/152 , CORROSION WAS FOUND AT LH WING UPPER SURFACE , WBL79 , S-11 AREA. REMOVED CORROSION LEVEL 2 AT LH WING UPPER SURFACE WBL 83,S11 AREA FROM P/N 65C25204-15 ORIGINAL THICKNESS 0.160" REMOVES 0.028"AND REMAINING THICKNESS IS 0.132" IS OVER LIMITS PER B737-400 SRM 57-20-01 ALLOWABLE DAMAGE PERFORM REPAIR AS PER EO NO.737-57-0038(REV IR)REF BOEING 8100-9 REF ID 202403010089-02
Part: SKIN — DENTED (NR 3 SLAT) · airframe 63,646 hrs · 43,186 cycles
THE DENT WAS FOUND AT #3 SLAT OUTER SKIN S.S.55 AREA , L:2.6 INCH , W:1.3 INCH , Y (DEPTH OF DENT) :0.076 INCH . PER SRM 57-43-01 ALLOWABLE DAMAGE 1 , A/Y: 1.3/0.076=17.1 , OVER LIMIT. PERFORMED REPAIR AT #3 SLAT OUTER SKIN 5.5.55 AREA, 2:2.6", W:1.3". I.A.W. B737-400 SRM 57-43-01 REPAIR 1 PAGE 201-204 (REV.15) & DMG 65C26603
Part: SKIN — CRACKED (NR 1 SLAT) · airframe 63,646 hrs · 43,186 cycles
THE CRACK WAS FOUND AT #1 SLAT OUTER SKIN S.S.299.53 ,L:0.1 INCH. PERFORMED REPAIR AT #1 SLAT OUTER SKIN 5.5.299.53, L: 0.1INCH. I.A.W.B737-400 SRM 57-43-01 REPAIR 6 PAGE 201-205 (REV.115) & DWG 65C26601
Part: TORQUE BOX — CORRODED (APU BAY) · corrosion level 2 · airframe 63,646 hrs · 43,186 cycles
CORROSION AT APU RH SIDE LOWER TORQUE BOX AT STA 1126. TEE ANGLE REPLACED AT APU RH SIDE LOWER TORQUE BOX AT STA 1126 PER: DRAWING 65-46579 SHEET 4 #531, SRM 51-40-02 PARA 4 R115
Part: SKIN — DENTED (HORIZONTAL STAB) · airframe 63,646 hrs · 43,186 cycles
DENT ( 7.0" X 2.0" IN AREA, MAX DEPTH =0.120") AT RH HROIZONTAL STABILIZER LEADING EDGE AT STAB STA 186~193. PERFORMED PERMANENT REPAIR AT RH HORIZONTAL STABILIZER LEADING EDGE AT STAB STA 186~190 CATEGORY A PER: 737-400 SRM 55-70-01 REPAIR 3 (R115)
Part: RETAINER — CORRODED (EMER DOOR FRAME) · corrosion level 2 · airframe 63,646 hrs · 43,186 cycles
OVERWING ENERGENCY HATCH SEAL RETAINER HAS BEEN CORRODED AROUND LOWER PORTION OF THE DOOR. LH FWD(2414L). 1. CORROSION REMOVED. THE DOOR LOWER PORTION & SEAL RETAINER WERE OVER LIMIT. 2. CUT OUT THE DAMAGED AREA & MADE REPAIR PARTS AND INSTALL WITH SEALANT. PER: SRM 51-70-11 FIG 1- SHEET 4/6 (R115) DRAWING 655C35000 3. SEAL RETAINER REPLACED (SHORT EDGE MARGIN) REFER TO ATTACH EO 737-52-0012 FOR DETAIL.
Part: RETAINER — CORRODED (DOOR SEAL) · corrosion level 2 · airframe 63,646 hrs · 43,186 cycles
OVERWING ENERGENCY HATCH SEAL RETAINER HAS BEEN CORRODED AROUND LOWER PORTION OF THE DOOR. LH AFT(2403L). OVERWING EMERGENCY HATCH SEAL RETAINER HAS BEEN CORRODED AROUND LOWER PORTION OF THE DOOR, RH AFT (2404R). 1. CORROSION REMOVED. THE DOOR LOWER PORTION & SEAL RETAINER WERE OVER LIMIT. 2. CUT OUT THE DAMAGED AREA & MADE REPAIR PARTS AND INSTALL WITH SEALANT. PER: SRM 51-70-11 FIG 1- SHEET 4/6 (R115) DRAWING 655C35000 3. SEAL RETAINER REPLACED (SHORT EDGE MARGIN) REFER TO ATTACH EO 737-52-0012 FOR DETAILS
Part: RETAINER — CORRODED (EMER DOOR FRAME) · corrosion level 2 · airframe 63,646 hrs · 43,186 cycles
OVERWING ENERGENCY HATCH SEAL RETAINER HAS BEEN CORRODED AROUND LOWER PORTION OF THE DOOR. RH FWD(2415R). 1. CORROSION REMOVED. THE SEAL RETAINER AND LOWER PORTION WERE OVER LIMIT 2. CUT-OUT THE DAMAGED AREA AND MADE REPAIR PARTS AND INSTALL WITH SEALANT. 3. SEAL RETAINER REPLACED. PER: SRM 51-70-11 FIG 1 SHEET 4/6 R115 DRAWING 65C35000
Part: SKIN — DEBONDED (RT WING TE FLAP) · airframe 63,646 hrs · 43,186 cycles
RH WING O/B AFT FLAP DISBOND BETWEEN WBL.230.68 ~ WBL.234.68 .(L:4 INCH , W:0.3 INCH). PERFORMED CATEGORY A REPAIR OF A DISBOND AT THE EDGE OF ALUM HONEYCOMB STRUCTURE, RH WING O/B AFT FLAP BETWEEN WBL 230.68~WBL 234.68 I.A.W. B737-400 SRM 57-53-02-2R-2 & SRM 51-702R-1 (R115)
Earlier reports · 2020–2023 · 36 reports
2023
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 63,395 hrs · 43,129 cycles
IN FLIGHT 2020Z AT FL360 SMOKE IN CABIN. DECLARED EMERGENCY WITH ATC ASK FOR DIRECT KRFD. LF RECIRC FAN FOUND SHORTING AND POPPING CIRCUIT BREAKER. DEFERRED LH RECIRC FAN PER MEL 21-31-05.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 62,044 hrs · 42,310 cycles
1.5 INCH CRACK FOUND IN FUSELAGE SKIN @ STR 23L EIGHT INCHES FORWARD OF BS 727E. INSTALLED REPAIR IN LOCATION GIVEN IAW BOEING SRM 53-00-01 REPAIR 31. SEE PROJECT WORKSHEET FOR DETAILS.
2022
Part: NONE — INTERMITTENT · airframe 60,832 hrs · 41,307 cycles
AUTO FAIL LIGHT ILLUMINATED AND CABIN ALT EXCEEDED 10000 FT. REPLACED CABIN PRESSURE MAIN OUTFLOW VALVE REF BOEING 737-400 AMM 21-31-11. FINAL FIX: REPLACED CABIN PRESSURE CONTROLLER REF B737-400 AMM 21-31-21
2020
Part: FRAME — CRACKED (BS 500E) · airframe 56,726 hrs · 38,951 cycles
AD 2019-08-02(H): TABLE 2 / PART 2 AND BOEING SB 737-53A1360,IR,PART 2 INSPECTION FIGURE 7,8,13 AND 14, FORWARD SIDE OF FRAME WEB HAS A CRACK RUNNING OUTBOARD FROM FASTENER HOLE 1/4" LONG BS 500E JUST BELOW STR10L
Part: SKIN — CRACKED (BS 300-343) · airframe 56,726 hrs · 38,951 cycles
AIR STAIR DOOR CUTOUT AROUND FWD UPPER HOLE NR 8 WAS CRACKED.
Part: ATTACH FITTING — CRACKED (LT MLG) · airframe 56,726 hrs · 38,951 cycles
LEFT MLG BEAM FORWARD SUPPORT FITTING FASTENER HOLE MARKED AS #16 CRACKED AT 1:00. THOUGHT TO BE IN THE WEB LAYER. BOEING SERVICE BULLETIN 737-57A1334,IR, PARAGRAPH 3.B PART 2
Part: FLOOR SUPPORT — CORRODED (FUSELAGE) · corrosion level 2 · airframe 56,726 hrs · 38,951 cycles
FORWARD LOWER CARGO COMPARTMENT LT SIDE STR 26L FLOOR SUPPORT PROFILE HAS CORROSION BETWEEN BS 500D-520.
Part: FRAME — CRACKED (BS 360) · airframe 56,726 hrs · 38,951 cycles
BS360 BETWEEN STR25L AND STR27 6 EACH FASTENER HOLES PRODUCED REJECTABLE INDICATIONS DURING ABHEC INSPECTION. ALL APPLICABLE DISCREPANT HOLES MARKED
Part: SUPPORT — CORRODED (BS 500C) · corrosion level 2 · airframe 56,726 hrs · 38,951 cycles
FORWARD LOWER CARGO COMPARTMENT LH SIDE SIDEWALL SUPPORT HAS CORROSION AT BS 500C
Part: FLOOR SUPPORT — CORRODED (BS 520-540) · corrosion level 2 · airframe 56,726 hrs · 38,951 cycles
FORWARD LOWER CARGO COMPARTMENT R/H SIDE STR 26R FLOOR SUPPORT PROFILE HAS CORROSION BETWEEN BS 520-540
Part: STRUCTURE — CRACKED (BS 727) · airframe 56,726 hrs · 38,951 cycles
AD2016-13-11 RELATED, UPON FASTENER REMOVAL TO ACCOMPLISH PREVENTIVE MOD AT BS727 FOUND CRACKS GOUGES AND OUT OF ROUND HOLES AT LBL 24.82, LBL 45.57,RBL 24.82 AND RBL 45.57 TOTALING 10 EA HOLES
Part: SKIN — CRACKED (AFT GALLEY DOOR) · airframe 56,726 hrs · 38,951 cycles
AFT GALLEY DOOR, FWD LWR CORNER HAS CRACK, EMANATES FROM EDGE, TRAVELS DOWN TO 5TH FASTENER HOLE IN NDT INSPECTION AREA ( SEE SB 737-53A1350 FIG 8) THEN COMES OUT OF THAT HOLE AND TRAVELS DOWN/FWD S INSIDE HOLE,AS MARKED IN BLACK
Part: FITTING — CRACKED (LT MLG) · airframe 56,726 hrs · 38,951 cycles
AD 2018-09-13(H): TABLE 8/OPTION 1: SERVICE BULLETIN 737-57A1318, R1, PARA 3B PART 3A1, LEFT MLG FORWARD SUPPORT FITTING, AFT SUPPORT FITTING, REAR SPAR UPPER CHORD AND REAR SPAR WEB HOLE 5 IS CRACKED IN THE AFT FITTING AT 600 AND IN THE WEN AT 1:00.
Part: ATTACH FITTING — CRACKED (RT MLG) · airframe 56,726 hrs · 38,951 cycles
AD 2018-09-13(H): TABLE 8 / OPTION 1: RT MLG FORWARD FITTING, AFT SUPPORT FITTING, REAR SPAR UPPER CHORD AND REAR WEB, IAW SB 737-57A1318,R1 PARA 3B PART 3 STEP 3A1, HOLE 4 AND 5 ARE CRACKED IN THE AFT FTG AND IN THE UPPER SPAR CHORD.
Part: FRAME — CRACKED (FUSELAGE) · airframe 56,726 hrs · 38,951 cycles
MAIN CARGO, RT FR360 FOUND CRACK AT STR 13R.
Part: SHEAR TIE — CRACKED (FUSELAGE) · airframe 56,726 hrs · 38,951 cycles
AD 2019-08-02(H): TABLE 3/:PART 3: SB 737-53A1360, IR, PART 3, CABIN BS 360 FRAME TO BODY SHEAR TIE OUTBOARD FLANGE IS CRACKED AT STRINGER 15.
Part: FLOORBEAM — CORRODED (FUSELAGE) · corrosion level 2 · airframe 56,726 hrs · 38,951 cycles
FORWARD LOWER CARGO COMPARTMENT FLOOR BEAM BETWEEN STR 26L-27L HAS CORROSION JUST FWD OF AFT BULKHEAD
Part: FRAME ANGLE — CORRODED (FUSELAGE) · corrosion level 2 · airframe 56,726 hrs · 38,951 cycles
AD 2019-15-07 AFT CARGO COMPARTMENT L/H FRAME AT BS727D UPPER SURFACE ON ANGLE ASSY CORRODED AT SEVERAL LOCATIONS FROM
Part: GUSSET — GOUGED (APU DOOR) · airframe 56,726 hrs · 38,951 cycles
APU DOOR INNER SURFACE GUSSET AND CENTER HINGE SUPPORT GOUGED
Part: STRINGER CLIP — CRACKED (FUSELAGE) · airframe 56,726 hrs · 38,951 cycles
AD 2019-08-02(H): TABLE 2/PART 2 AND BOEING SB 737-53A1360,IR PART 2 INSPECTION FIGURE 7,8,13 AND 14. STRINGER CLIP IS CRACKED AFT SIDE OF FRAME BS727B S10L
Part: FLOORBEAM — CORRODED (FUSELAGE) · corrosion level 2 · airframe 56,726 hrs · 38,951 cycles
FORWARD LOWER CARGO COMPARTMENT FLOORBEAM BETWEEN STR 27L-28L HAS CORROSION JUST FWD OF AFT BULKHEAD.
Part: STRINGER CLIP — CRACKED (FUSELAGE) · airframe 56,726 hrs · 38,951 cycles
AD 2019-08-02(H): TABLE 3 /PART3: BOEING SB 737-53A1360,IR, PART 3. CABIN B>S. 420 FORWARD SIDE OF FRAME STRINGER CLIP UPR HORIZ FLANGE AFT FASTENER HOLE IS CRACKED AT STRINGER 16R
Part: INTERCOSTAL — CRACKED (FUSELAGE) · airframe 56,726 hrs · 38,951 cycles
FUSELAGE FWD OF R1 DOOR AT STR 14R ADJACENT TO FRAME BS 277 HAS CRACK IN ITS FWD RADIUS TRIM OUT. REPAIR IN CONJUNCTION WITH SB 737-53A1241.
Part: STRINGER CLIP — CRACKED (FUSELAGE) · airframe 56,726 hrs · 38,951 cycles
AD 2019-08-02(H): TABLE 3/ PART 3: BOEING SB 737-53A1360,IR,PART 3. CABIN B.S 380 FORWARD SIDE OF FRAME STRINGER CLIP UPR HORIZ. FLANGE AFT FASTENER HOLE IS CRACKED AT STRINGER 15R
Part: SUPPORT PLATE — CORRODED (FUSELAGE) · corrosion level 2 · airframe 56,726 hrs · 38,951 cycles
FORWARD LOWER CARGO COMPARTMENT RT SIDE STR26R FLOOR SIDE PLATE HAS CORROSION APPROX 6" FWD BS 500D.
Part: STRINGER CLIP — CRACKED (FUSELAGE) · airframe 56,726 hrs · 38,951 cycles
AD 2019-08-02(H):TABLE 2 /PART 2 AND BOEING SB 737-53A1360,IR, PART 2 INSPECTION FIGURE 7,8,13 AND 14, STRINGER CLIP IS CRACKED UPPER AND LOWER FLANGES AFT SIDE OF FRAME BS 500D S10L
Part: SUPPORT WEB — CRACKED (FUSELAGE) · airframe 56,726 hrs · 38,951 cycles
LH TRANSITION PANEL SUPPORT WEB AT STR 26L BETWEEN BS 400-420 CRACKED
Part: STRINGER CLIP — CRACKED (FUSELAGE) · airframe 56,726 hrs · 38,951 cycles
FUSELAGE FWD OF R1 DOOR, STRINGER CLIP AT STR 10R, FWD SIDE OF FRAME BS 277 HAS CRACK REPAIR IN CONJUNCTION WITH SB 737-53A1241.
Part: STRINGER CLIP — CRACKED (FUSELAGE) · airframe 56,726 hrs · 38,951 cycles
AD 2019-08-02(H): TABLE 2 / PART 2 AND SB 737-53A1360 IR PART 2 INSPECTION FIGURE 7,8,13 AND 14. STRINGER CLIP IS CRACKED HORIZONTAL FLANGE AFT HOLE S16L FORWARD SIDE OF FRAME BS767.
Part: BAFFLE — CRACKED (FUSELAGE) · airframe 56,726 hrs · 38,951 cycles
BAFFLE CRACKED BETWEEN FR STATION 500E AND 500F AT STRINGER 26L FWD CARGO PIT
Part: BAFFLE — CRACKED (FUSELAGE) · airframe 56,726 hrs · 38,951 cycles
LH BAFFLE BETWEEN 400D AND 500E CRACKED AT STRINGER 26L
Part: BAFFLE — CRACKED (FUSELAGE) · airframe 56,726 hrs · 38,951 cycles
CRACKED BAFFLE IN FWD PIT COMP BETWEEN BS 460-480 STR 26L
Part: STRINGER CLIP — CRACKED (FUSELAGE) · airframe 56,726 hrs · 38,951 cycles
AD 2019-08-02(H)TABLE 3/PART 3: SB 737-53A1360 IR PART 3. CABIN BS 440 FORWARD SIDE OF FRAME STRINGER CLIP LWR HORIZ FLANGE AFT FASTENER HOLE IS CRACKED AT STRINGER 16R.
Part: CHANNEL — CORRODED (FUSELAGE) · corrosion level 2 · airframe 53,726 hrs · 38,951 cycles
FORWARD LOWER CARGO COMPARTMENT L/H SIDE STR 26L FLOOR SUPPORT SIDE PLATE HAS CORROSION BETWEEN B.S 500B-500C
Part: SUPPORT PLATE — CRACKED (FUSELAGE) · airframe 56,726 hrs · 38,951 cycles
FORWARD LOWER CARGO COMPARTMENT R/H SIDE STR 26R SIDE PLATE CRACKED AT B.S. 500
Part: STRINGER CLIP — CRACKED (FUSELAGE) · airframe 56,726 hrs · 38,951 cycles
AD 2019-08-02(H) PART 2 AND BOEING SB 737-53A1360, IR PART 2 INSPECTION FIGURE 7,8,13 AND 14, STRINGER CLIP IS CRACKED VERTICAL FLANGE INBOARD HOLE S16L FORWARD SIDE OF FR BS747