# JASC 5521: Elevator, Spar/Rib

- Type: JASC system/component code (FAA)
- ATA chapter: 55 Stabilizers
- Title in the code table: ELEVATOR, SPAR/RIB STRUCTURE
- Service difficulty reports: 520
- FAA code table: https://www.faa.gov/sites/faa.gov/files/JASC_Code.pdf#page=51
- Page: https://openairdocs.org/jasc/5521

## What it covers

For specific reports of spars/ribs on the elevator.

## Service difficulty reports (520, newest 50)

- [SDR FDEA202610121557](https://openairdocs.org/sdr/FDEA202610121557), Oct 12, 2026: Boeing 757204. FRAME. CORRODED. LEFT ELEVATOR CONDUCTIVE FRAME MULTIPLE ZONES WITH CORROSION (UPPER AND LOWER) EVALUATED CONDUCTIVE FRAME LH ELEVATOR UP (N923FD)
- [SDR LR7A2026101103991](https://openairdocs.org/sdr/LR7A2026101103991), Oct 11, 2026: Lkheed 382G. RIB. CRACKED. DURING SCHEDULED B-3 CHECK WHILE PERFORMING OTHER MAINTENANCE, FOUND LH ELEVATOR RIBS CRACKED AT HSS71L AND HSS84L. / RE (N408LC)
- [SDR LR7A2026101103990](https://openairdocs.org/sdr/LR7A2026101103990), Oct 11, 2026: Lkheed 382G. RIB. BROKEN. DURING SCHEDULED B-3 CHECK UNDER JOB CARD HB2703, FOUND LT ELEVATOR RIBS BROKEN AT HSS76L AND HSS80L. REPAIR BY REPLACEM (N408LC)
- [SDR IPXA2026090848502](https://openairdocs.org/sdr/IPXA2026090848502), Sep 2, 2026: Boeing 75724APF. FRAME. BULGED. RH ELEVATOR LOWER SURFACE O/B CONDUCTIVE FRAME SPLICE HAS BULGING, EVIDENCE OF CORROSION UNDERNEATH. 83-025. ATA 55-20.  (N463UP)
- [SDR IPXA2026101736976](https://openairdocs.org/sdr/IPXA2026101736976), Sep 1, 2026: Boeing 75724APF. FRAME. CORRODED. LH ELEVATOR LOWER, O/B END CONDUCTIVE FRAME SPLICE HAS EVIDENCE OF CORROSION UNDER SEALANT. ATA 55-20. 83-004.INSTALLED  (N463UP)
- [SDR IPXA2026071022930](https://openairdocs.org/sdr/IPXA2026071022930), Jul 6, 2026: Boeing 7478F. RIB. CRACKED. CRACK FOUND ON RIB I/B SIDE OF I/B ELEVATOR INSTALLED NEW CLOSEOUT RIB P/N 65B05845-1 IAW B747-8F SRM 51-40-02. INSTALLE (N626UP)
- [SDR HNAA2026072400628](https://openairdocs.org/sdr/HNAA2026072400628), Jun 22, 2026: Emb EMB145LR. RIB. CRACKED. RIB ON RH ELEVATOR AT STA YH= 1340 HAS A CRACK. REMOVED AND REPLACED WITH NEW 1EA RIB ON RH ELEVATOR AT STA YH=1340 IAW  (N931AE)
- [SDR 1Q2R2026072950088](https://openairdocs.org/sdr/1Q2R2026072950088), Jun 15, 2026: Cndair CL6002C10. FITTING. GOUGED. LEFT ELEVATOR PCU 2 FITTING GOUGE DAMAGE. PERFORMED PERMANENT REPAIR IAW REO 670-55-21-113 REV--, AND EA 57-2025-1480, R (N523AE)
- [SDR UIEA2026060300448](https://openairdocs.org/sdr/UIEA2026060300448), Jun 3, 2026: Boeing 7478F. SPAR. DAMAGED. FOUND OTBD ELEVATOR FRONT SPAR INNER CHORD DAMAGE AT LT LE HSS 231. ACCOMPLISHED EO 1955A065 PART 1 REV 0 AND DWG 65B057 (N864GT)
- [SDR UIEA2026060300449](https://openairdocs.org/sdr/UIEA2026060300449), Jun 3, 2026: Boeing 7478F. SPAR. DAMAGED. FOUND OTBD ELEVATOR FRONT SPAR INNER CHORD DAMAGE AT RT LE HSS 314 AND WEB ORIGINAL REPAIR.. ACCOMPLISHED EO 1955A064 RE (N864GT)
- [SDR IPXA2026052622502](https://openairdocs.org/sdr/IPXA2026052622502), May 16, 2026: Boeing 75724APF. FRAME. CORRODED. UPON REMOVAL OF UPPER SPLICE PLATE AT LH ELEVATOR T/E, TIP AREA, FOUND UPPER CONDUCTIVE FRAME CORRODED. INSTALLED NEW UP (N412UP)
- [SDR IPXA2026052622562](https://openairdocs.org/sdr/IPXA2026052622562), May 16, 2026: Boeing 75724APF. FRAME. CORRODED. UPON REMOVAL OF LOWER SPLICE PLATE AT LH ELEVATOR T/E, TIP AREA, FOUND LOWER CONDUCTIVE FRAME CORRODED, INSTALLED NEW LO (N412UP)
- [SDR 4VAA202605120017](https://openairdocs.org/sdr/4VAA202605120017), May 12, 2026: Saab 2000SAAB. SPAR. CORRODED. DURING INSPECTION, CORROSION WAS FOUND ON THE RIGHT ELEVATOR FORWARD SPAR AND RIBS, AND THE EMER PITCH TRIM ACTUATOR BRA (N749SA)
- [SDR IPXA2026052478794](https://openairdocs.org/sdr/IPXA2026052478794), May 8, 2026: Boeing 75724APF. FRAME. CORRODED. RT ELEVATOR OTBD END UPPER CONDUCTIVE FRAME DISBONDED AT AREA UNDER CORRODED STATIC WICK BASE. RL003. INSTALLED CONDUCTI (N412UP)
- [SDR IPXA2025081866036](https://openairdocs.org/sdr/IPXA2025081866036), Aug 14, 2025: Boeing 7478F. SPAR. DAMAGED. DURING PERFORM EO-85445-JIC 1 , FOUND FASTENER HOLES (CODE G) WORN NEAR FRONT SPAR AREA AT ELEV STA 244.3. PERFORMED NDT (N606UP)
- [SDR AALA202506306735](https://openairdocs.org/sdr/AALA202506306735), Jun 29, 2025: Airbus A321211. RIB. CORRODED. AIRCRAFT IN BASE MAINTENANCE: CORROSION ON LEFT HAND ELEVATOR OUTBOARD RIB AT ER 10. REPLACED RIB PER SRM 51-72-11-911-0 (N192UW)
- [SDR DALA2025062604788](https://openairdocs.org/sdr/DALA2025062604788), Jun 25, 2025: Boeing 717200. TAB. DELAMINATED. SHIP 9572 DELAMINATED CONTROL TAB OF RH ELEVATOR. CORRECTIVE ACTION: CONTROL TAB OF RH ELEVATOR WAS REPAIRED PER PRI 626 (N927AT)
- [SDR CALA2025060205169](https://openairdocs.org/sdr/CALA2025060205169), May 30, 2025: Airbus A320232. RIB. CORRODED. L/H ELEVATOR CORROSION AT O/B RIB T/E AS MARKED PER HAECO LCQ N/R 9298575/28575 GEN BY V899045 ESFR COMPLETED RMVD AND R (N465UA)
- [SDR IPXA2025053000790](https://openairdocs.org/sdr/IPXA2025053000790), May 21, 2025: Boeing 7478F. RIB. CRACKED. CRACK - PERFORM EO-85445-JIC2 MODIFICATION FOUND THE CRACK AT ELEV STA 306.8 RIB END. (REPAIR) 1.REPAIR DAMAGE AREA I.A. (N618UP)
- [SDR 9WGA2025061754512](https://openairdocs.org/sdr/9WGA2025061754512), May 5, 2025: Doug MD11F. RIB. CORRODED. DURING HEAVY CHECK RH OUTB ELEVATOR FOUND CORROSION ON RIB INSTL BEHIND ACCESS PANEL 346BZ. CLEANED CORROSION AT RH OB E (N545JN)
- [SDR IPXA2025050505224](https://openairdocs.org/sdr/IPXA2025050505224), May 5, 2025: Boeing 7478F. RIB. CRACKED. RH OUTBOARD ELEVATOR FRONT SPAR AND RIB REINFORCEMENT. COMPLETE PER SB 747-55-2069. (N616UP)
- [SDR IPXA2025050263500](https://openairdocs.org/sdr/IPXA2025050263500), May 2, 2025: Boeing 7478F. SPAR. CRACKED. LH OUTBOARD ELEVATOR FRONT SPAR AND RIB REINFORCEMENT. COMPLETE PER SB 747-55-2069. (N616UP)
- [SDR CALA2025041503857](https://openairdocs.org/sdr/CALA2025041503857), Apr 12, 2025: Airbus A320232. RIB. CORRODED. RH ELEVATOR O/B RIB I/B SIDE HAS CORROSION. REMOVED RIB ON RH ELEVATOR O/B RIB IAW A320 SRM 51-42-11/001, RE PLACED RIB  (N462UA)
- [SDR DALA2025032202147](https://openairdocs.org/sdr/DALA2025032202147), Mar 20, 2025: Airbus A319114. RIB. CORRODED. SHIP 3141 DISC: CORROSION ELEVATOR O/B RIB ON RH HORIZONTAL STABILIZER. C/A: EPLACED OB RIB 10 ELEVATOR ON RH HORIZONTAL (N341NB)
- [SDR DALA2025032002100](https://openairdocs.org/sdr/DALA2025032002100), Mar 19, 2025: Airbus A319114. RIB. CORRODED. SHIP 3141 DISC: CORROSION OB RIB ELEVATOR ON LH HORIZONTAL STABILIZER. C/A: REPLACED OB RIB 10 ELEVATOR ON LH HORIZONTAL (N341NB)
- [SDR COEA2025060403913](https://openairdocs.org/sdr/COEA2025060403913), Jan 9, 2025: Aerosp ATR42300. RIB. CORRODED. WO 262004 NR 300031 HEAVY CHECK COE/MAJOR REPAIR: L/H ELEVATOR HORN TIP RIB HAS LEVEL 2 CORROSION ON OUTER MATING SURFAC (N913FX)
- [SDR YENA2024122601591](https://openairdocs.org/sdr/YENA2024122601591), Dec 23, 2024: Airbus A320232. RIB. CORRODED. DURING HEAVY MAINTENANCE: CORROSION ELEVATOR OUTBOARD RIB ON RH HORIZONTAL STABILIZER (1 EA) (CPCP FINDING); (RESOLVED O (N517JB)
- [SDR DALA2024120211370](https://openairdocs.org/sdr/DALA2024120211370), Nov 27, 2024: Boeing 717200. RIB. ELONGATED. ELONGATED HOLE ON RIB ON COUNTERWEIGHT-TO-L.E. CONNECTION FITTING AT RIGHT ELEVATOR STA XH 217. SUMMARY OF NRC 00410: RI (N981AT)
- [SDR LR7A2024111903604](https://openairdocs.org/sdr/LR7A2024111903604), Nov 19, 2024: Lkheed 382G. SPAR. CRACKED. DURING SCHEDULED C-5 CHECK WHILE PERFORMING OTHER MAINTENANCE, FOUND RH ELEVATOR TRAILING EDGE SPAR ASSY CRACKED BETWEEN (N407LC)
- [SDR LR7A2024090303512](https://openairdocs.org/sdr/LR7A2024090303512), Sep 3, 2024: Lkheed 382G. RIB. CRACKED. DURING SCHEDULED C-15 CHECK WHILE PERFORMING OTHER MAINTENANCE, FOUND RH ELEVATOR RIBS CRACKED AT HSS67-85R. / REPAIR BY (N402LC)
- [SDR CALA2024073102144](https://openairdocs.org/sdr/CALA2024073102144), Jul 24, 2024: Boeing 737924ER. RIB. CRACKED. SUPPORT TASK: RH ELEVATOR END RIB FOUND CRACKED. TRANSCRIBED FROM HAECO GSO NRC 9288653. (N37462)
- [SDR ASAA2024071052281](https://openairdocs.org/sdr/ASAA2024071052281), Jul 10, 2024: Airbus A320214. RIB. CORRODED. L/H ELEVATOR O/B LOWER L/E CORROSION GROUNDED - YES. REMOVED RIB #10 IAW A320 SRM 55-21-12-300-002 AND A320 SRM 51-42-11 (N361VA)
- [SDR AALA202405203749](https://openairdocs.org/sdr/AALA202405203749), Apr 10, 2024: Airbus A320232. RIB. CRACKED. AIRCRAFT IN BASE MAINTENANCE: LEFT HAND HORIZONTAL STABILIZER ELEVATOR RIB 10 CRACKED. REPLACED RIB ASSEMBLY PER SRM 55- (N662AW)
- [SDR LR7A2024032803414](https://openairdocs.org/sdr/LR7A2024032803414), Mar 28, 2024: Lkheed 382G. RIB. CRACKED. DURING SCHEDULED C-4 CHECK WHILE PERFORMING OTHER MAINTENANCE, FOUND RH ELEVATOR RIB LOWER FLANE CRACKED AT FS1142, HSS8 (N408LC)
- [SDR LR7A2024032803413](https://openairdocs.org/sdr/LR7A2024032803413), Mar 28, 2024: Lkheed 382G. RIB. CRACKED. DURING SCHEDULED C-4 CHECK WHILE PERFORMING OTHER MAINTENANCE, FOUND RH ELEVATOR RIB CRACKED AT FS1143, WL276, HSS52.75R (N408LC)
- [SDR LR7A2024032803411](https://openairdocs.org/sdr/LR7A2024032803411), Mar 28, 2024: Lkheed 382G. RIB. CRACKED. DURING SCHEDULED C-4 CHECK WHILE PERFORMING OTHER MAINTENANCE, FOUND RH ELEVATOR RIB CRACKED AT HSS80R. / REPAIR BY REPL (N408LC)
- [SDR LR7A2024032803410](https://openairdocs.org/sdr/LR7A2024032803410), Mar 28, 2024: Lkheed 382G. SPAR CAP. CORRODED. DURING SCHEDULED C-4 CHECK UNDER JOB CARD HC5501, FOUND RH ELEVATOR LEADING EDGE UPPER SPAR CAP CORRODED AT HSS94R. / RE (N408LC)
- [SDR ASAA2023122547438](https://openairdocs.org/sdr/ASAA2023122547438), Dec 25, 2023: Boeing 737790. RIB. CORRODED. FRETTING CORROSION FOUND ON RIB AND CLEVIS FITTING AT ELEVATOR STA 176.64 CAUSED BY CRACKED BEAM. GROUNDED - YES. ACCOMP (N615AS)
- [SDR LR7A2023112903335](https://openairdocs.org/sdr/LR7A2023112903335), Nov 29, 2023: Lkheed 382G. RIB. CRACKED. DURING SCHEDULED C-2 CHECK WHILE PERFORMING OTHER MAINTENANCE, FOUND RH ELEVATOR HSS67R, HSS71R, AND HSS76R LOWER RIBS C (N410LC)
- [SDR AALA202311021128](https://openairdocs.org/sdr/AALA202311021128), Sep 8, 2023: Airbus A320214. RIB. CORRODED. AIRCRAFT IN BASE MAINTENANCE: CORROSION ON RIGHT HAND ELEVATOR RIB 10. REPLACED RIB PER SRM 55-21-12-300-002 AND SRM 51- (N117UW)
- [SDR SWIA20231027822](https://openairdocs.org/sdr/SWIA20231027822), Aug 22, 2023: Cndair CL6002B19. UNKNOWN. DAMAGED. DURING AUDIT OF 40K TASK CARD 55-340-602(DETAILED INSPECTION OF THE RIGHT ELEVATOR FRONT SPAR ASSEMBLY) FOUND THAT THE R (N953SW)
- [SDR AALA202308251102](https://openairdocs.org/sdr/AALA202308251102), Aug 19, 2023: Airbus A319112. RIB. CORRODED. AIRCRAFT IN BASE MAINTENANCE: CORROSION ON RIGHT HAND ELEVATOR OUTBOARD RIB. REPLACED ELEVATOR ASSEMBLY PER TASK CARD 26 (N712US)
- [SDR AALA202308160400](https://openairdocs.org/sdr/AALA202308160400), Jun 21, 2023: Airbus A319112. RIB. CORRODED. AIRCRAFT IN BASE MAINTENANCE: CORROSION ON LEFT HAND ELEVATOR OUTBOARD RIB 10. REPLACED RIB PER SRM 55-21-12. (N712US)
- [SDR SWIA202266499](https://openairdocs.org/sdr/SWIA202266499), Aug 3, 2022: Cndair CL6002B19. NONE. DEFORMED. *R/H ELEVATOR FRONT SPAR INBD EDGE IS DEFORMED AND BENT (MARKED) (C-CHECK RO 9/12/2022) R/H ELEVATOR FRONT SPAR INBD EDG (N955SW)
- [SDR DALA2022062204355](https://openairdocs.org/sdr/DALA2022062204355), Jun 21, 2022: Airbus A320211. ATTACH FITTING. CORRODED. SHIP 3230 CORROSION ATTACH FITTING ELEVATOR ACTUATOR INBOARD FITTING INBOARD LUG ON LH HORIZONTAL STABILIZER. CORRECTIVE (N330NW)
- [SDR DALA2022062004287](https://openairdocs.org/sdr/DALA2022062004287), Jun 18, 2022: Airbus A320211. ATTACH FITTING. CORRODED. SHIP 3224 CORROSION BUSHING ATTACH FITTING ELEVATOR HINGE 4 ON LH HORIZONTAL STABILIZER. CORRECTIVE ACTION: REPAIRED LUG (N324US)
- [SDR DALA2022062004286](https://openairdocs.org/sdr/DALA2022062004286), Jun 18, 2022: Airbus A320211. ATTACH FITTING. CORRODED. SHIP 3224 CORROSION BUSHING ATTACH FITTING ELEVATOR HINGE 6 ON RH HORIZONTAL STABILIZER. CORRECTIVE ACTION: REPAIRED LUG (N324US)
- [SDR DALA2022062004285](https://openairdocs.org/sdr/DALA2022062004285), Jun 18, 2022: Airbus A320211. ATTACH FITTING. CORRODED. SHIP 3224 CORROSION BUSHING ATTACH FITTING ELEVATOR HINGE 1 ON RH HORIZONTAL STABILIZER. CORRECTIVE ACTION: REPAIRED LUG (N324US)
- [SDR YENA2022061400605](https://openairdocs.org/sdr/YENA2022061400605), Jun 13, 2022: Emb ERJ190100IGW. HOUSING. CORRODED. DURING HEAVY MAINTENANCE, CORROSION ON INBOARD LUG BUSHING HOUSING AT RH ELEVATOR HINGE 3; REF TOMX NR 00314 WO 1931: IN (N306JB)
- [SDR DALA2022063004543](https://openairdocs.org/sdr/DALA2022063004543), May 14, 2022: Airbus A320211. NONE. NONE. SHIP 3224 CORROSION BUSHING ATTACH FITTING ELEVATOR HINGE 5 ON LH HORIZONTAL STABILIZER. CORRECTIVE ACTION: REPAIRED LUG (N324US)

All 520: https://openairdocs.org/jasc/5521/reports.md

## Other codes in chapter 55

- [JASC 5500](https://openairdocs.org/jasc/5500): Empennage Structure (490 reports)
- [JASC 5510](https://openairdocs.org/jasc/5510): Horizontal Stabilizer Structure (5,958 reports)
- [JASC 5511](https://openairdocs.org/jasc/5511): Horizontal Stabilizer, Spar/Rib (6,454 reports)
- [JASC 5512](https://openairdocs.org/jasc/5512): Horizontal Stabilizer, Plate/Skin (7,879 reports)
- [JASC 5513](https://openairdocs.org/jasc/5513): Horizontal Stabilizer, Tab Structure (97 reports)
- [JASC 5514](https://openairdocs.org/jasc/5514): Horizontal Stabilizer Miscellaneous Structure (2,779 reports)
- [JASC 5520](https://openairdocs.org/jasc/5520): Elevator Structure (5,383 reports)
- [JASC 5522](https://openairdocs.org/jasc/5522): Elevator, Plate/Skin (3,271 reports)
- [JASC 5523](https://openairdocs.org/jasc/5523): Elevator, Tab Structure (1,033 reports)
- [JASC 5524](https://openairdocs.org/jasc/5524): Elevator Miscellaneous Structure (322 reports)
- [JASC 5530](https://openairdocs.org/jasc/5530): Vertical Stabilizer (2,534 reports)
- [JASC 5531](https://openairdocs.org/jasc/5531): Vertical Stabilizer, Spar/Rib (1,233 reports)
- [JASC 5532](https://openairdocs.org/jasc/5532): Vertical Stabilizer, Plate/Skin (1,745 reports)
- [JASC 5533](https://openairdocs.org/jasc/5533): Ventral Structure (77 reports)
- [JASC 5534](https://openairdocs.org/jasc/5534): Vertical Stabilizer Miscellaneous Structure (816 reports)
- [JASC 5540](https://openairdocs.org/jasc/5540): Rudder Structure (1,901 reports)
- [JASC 5541](https://openairdocs.org/jasc/5541): Rudder, Spar/Rib (277 reports)
- [JASC 5542](https://openairdocs.org/jasc/5542): Rudder, Plate/Skin (1,372 reports)
- [JASC 5543](https://openairdocs.org/jasc/5543): Rudder, Tab Structure (196 reports)
- [JASC 5544](https://openairdocs.org/jasc/5544): Rudder Miscellaneous Structure (270 reports)
- [JASC 5550](https://openairdocs.org/jasc/5550): Empennage Flight Control Surfaces, Attach Fittings (66 reports)
- [JASC 5551](https://openairdocs.org/jasc/5551): Horizontal Stabilizer, Attach Fittings (672 reports)
- [JASC 5552](https://openairdocs.org/jasc/5552): Elevator Tab, Attach Fittings (222 reports)
- [JASC 5553](https://openairdocs.org/jasc/5553): Vertical Stabilizer, Attach Fittings (586 reports)
- [JASC 5554](https://openairdocs.org/jasc/5554): Rudder/Tab, Attach Fittings (132 reports)
- [JASC 5597](https://openairdocs.org/jasc/5597): Stabilizer System Wiring (14 reports)

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