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Alert Details

Recovery Plan

Aircraft AOG at Chicago Midway after FMC 1 failed during preflight. Left CDU blank, FMC FAIL annunciation, will not re-initialize after power cycle and CB reset. Swap check with FMC 2 confirmed the fault follows the unit. Need replacement FMC and CDU on site plus avionics support for install and return to service.

Alert Details

Alert type: AOG Alert
Added to platform: 24SEP26 1504Z
Aircraft model: Boeing 737-800
Aircraft series: Not specified
Engine model: CFM56-7B
ICAO location: KMDW
Impact type: Revenue PAX
MX window opens: 24SEP26 1501Z
RTS target: 25SEP26 1501Z
Wanted items: 4
Alert specifics: Unscheduled Maintenance
Airworthiness Directive (AD): Not specified
Service Bulletin (SB): Not specified
Check: Not specified
ATA 100 CHAPTERS: 34Navigation
Short fault name: FMC 1 FAIL / CDU blank
Error / fault indications: FMC FAIL light, left CDU blank screen, FMC message on upper display, no nav database load
Troubleshooting status: Troubleshooting Complete - All required Items listed
TSM/FIM reference: FIM 34-61-00
Roles and responsibilities: Avionics Technician

ITEMS

Items in this alert

4 items

Parts & Rotables · WANTED

10-62225-024 - Flight Management Computer (FMC), 737NG

Item Id: H4CM4

Replacement FMC for 737NG, latest software load acceptable

Aircraft / Family: Boeing
ATA 100 CHAPTERS: 34Navigation
Required: 25SEP26 0901Z
Quantity: 1

Added to platform: 24SEP26 1508Z

DetailsClose

ITEM WORKFLOW

Item basics

Item Type: Parts & Rotables
Wanted / Available: Wanted
Item Title: Flight Management Computer (FMC), 737NG
Sales Copy: Not specified

ITEM DETAILS

Technical specifications

P/N / IPC REF: 10-62225-024
ALT P/Ns: Not specified
Description: Replacement FMC for 737NG, latest software load acceptable
Rev or Version: Latest
Quantity: 1
ACCEPTABLE MANUFACTURER(s): OEM
Manufacturer Type(s) Considered: OEM
Trace Required: OEM trace, Maintenance release trace
Required Onsite D/T Z: 2026-09-25 09:01Z
Onsite Location Type: Ramp
ATA 100 CHAPTERS: 34Navigation
Acceptable Release Documentation / Tag: FAA Form 8130-3

APPLICABILITY & CONDITION

Applicability and condition

Conditions Considered: Not specified
AIRCRAFT MODEL(s): Not specified
ENGINE MODEL(s): Not specified

TERMS

Terms

Purchase Type(s) Considered: Outright Purchase, Exchange (Component Exchange)
Warranty Required: No
Warranty Terms: Not specified
Shipping (Incoterms): DAP

Parts & Rotables · WANTED

10-62255-003 - Control Display Unit (CDU), 737NG

Item Id: M7KKK

Left CDU, blank display, replacement required

Aircraft / Family: Boeing
ATA 100 CHAPTERS: 34Navigation
Required: 25SEP26 0901Z
Quantity: 1

Added to platform: 24SEP26 1511Z

DetailsClose

ITEM WORKFLOW

Item basics

Item Type: Parts & Rotables
Wanted / Available: Wanted
Item Title: Control Display Unit (CDU), 737NG
Sales Copy: Not specified

ITEM DETAILS

Technical specifications

P/N / IPC REF: 10-62255-003
ALT P/Ns: Not specified
Description: Left CDU, blank display, replacement required
Rev or Version: Latest
Quantity: 1
ACCEPTABLE MANUFACTURER(s): OEM
Manufacturer Type(s) Considered: OEM
Trace Required: OEM trace, Maintenance release trace
Required Onsite D/T Z: 2026-09-25 09:01Z
Onsite Location Type: Ramp
ATA 100 CHAPTERS: 34Navigation
Acceptable Release Documentation / Tag: FAA Form 8130-3

APPLICABILITY & CONDITION

Applicability and condition

Conditions Considered: Not specified
AIRCRAFT MODEL(s): Not specified
ENGINE MODEL(s): Not specified

TERMS

Terms

Purchase Type(s) Considered: Outright Purchase, Exchange (Component Exchange)
Warranty Required: No
Warranty Terms: Not specified
Shipping (Incoterms): DAP

Maintenance Services · WANTED

Avionics technician, FMC/CDU R&R and ops check

Item Id: CAFA7

A&P with avionics experience to remove/install FMC and CDU, load nav database, complete ops test and RTS paperwork at KMDW

Aircraft / Family: Boeing 737-800
ATA 100 CHAPTERS: 34Navigation
Required: 25SEP26 0901Z
Location: KMDW

Added to platform: 24SEP26 1513Z

DetailsClose

ITEM WORKFLOW

Item basics

Item Type: Maintenance Services
Wanted / Available: Wanted
Item Title: Avionics technician, FMC/CDU R&R and ops check
Sales Copy: Not specified

ITEM DETAILS

Technical specifications

Description: A&P with avionics experience to remove/install FMC and CDU, load nav database, complete ops test and RTS paperwork at KMDW
Required Onsite D/T Z: 2026-09-25 09:01Z
Onsite Location Type: Ramp
ATA 100 CHAPTERS: 34Navigation

APPLICABILITY & CONDITION

Applicability and condition

Conditions Considered: Not specified
AIRCRAFT MODEL(s): Not specified
Aircraft Model: Boeing 737-800
ENGINE MODEL(s): Not specified

Tooling, Fixtures, & TMDE · WANTED

Nav database loader - Nav database loader with current AIRAC cycle

Item Id: PFKJK

Portable data loader with current nav database for 737NG FMC load

Aircraft / Family: Boeing
ATA 100 CHAPTERS: 34Navigation
Required: 25SEP26 0901Z
Location: KMDW

Added to platform: 24SEP26 1516Z

DetailsClose

ITEM WORKFLOW

Item basics

Item Type: Tools, Fixtures, & TMDE
Wanted / Available: Wanted
Item Title: Nav database loader with current AIRAC cycle
Sales Copy: Not specified

ITEM DETAILS

Technical specifications

P/N / IPC REF: Nav database loader
ALT P/Ns: Not specified
Description: Portable data loader with current nav database for 737NG FMC load
Rev or Version: Latest
Quantity: 1
ACCEPTABLE MANUFACTURER(s): OEM
Manufacturer Type(s) Considered: OEM
Trace Required: OEM trace, Maintenance release trace
Required Onsite D/T Z: 2026-09-25 09:01Z
Onsite Location Type: Ramp
ATA 100 CHAPTERS: 34Navigation
Acceptable Release Documentation / Tag: FAA Form 8130-3

APPLICABILITY & CONDITION

Applicability and condition

Conditions Considered: Not specified
AIRCRAFT MODEL(s): Not specified
ENGINE MODEL(s): Not specified

TERMS

Terms

Purchase Type(s) Considered: Outright Purchase, Exchange (Component Exchange)
Warranty Required: No
Warranty Terms: Not specified
Shipping (Incoterms): DAP

OPERATIONAL CHANGES

Alert status updates

No visible status updates have been posted.

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Recovery Plan

Alert Details

Alert type

AOG Alert

Added to platform

24SEP26 1504Z

Aircraft model

Boeing 737-800

Aircraft series

Not specified

Engine model

CFM56-7B

ICAO location

KMDW

Impact type

Revenue PAX

MX window opens

24SEP26 1501Z

RTS target

25SEP26 1501Z

Wanted items

Alert specifics

Unscheduled Maintenance

Airworthiness Directive (AD)

Not specified

Service Bulletin (SB)

Not specified

Check

Not specified

ATA 100 CHAPTERS

34Navigation

Short fault name

FMC 1 FAIL / CDU blank

Error / fault indications

FMC FAIL light, left CDU blank screen, FMC message on upper display, no nav database load

Troubleshooting status

Troubleshooting Complete - All required Items listed

TSM/FIM reference

FIM 34-61-00

Roles and responsibilities

Avionics Technician