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Alert Details

Recovery Plan

Southwest 737-700 at KDAL is out of service after a left main gear hydraulic system A leak was found on the overnight walkaround. Engine-driven pump case drain is leaking and system A quantity is below dispatch limits. Replacement pump, hydraulic service and next-flight-out logistics are needed to meet the morning rotation.

Alert Details

Alert type: AOG Alert
Added to platform: 22OCT26 2314Z
Aircraft model: Boeing 737-700
Aircraft series: Not specified
Engine model: CFM56-7B
ICAO location: KDAL
Impact type: Revenue PAX
MX window opens: 22OCT26 2313Z
RTS target: 24OCT26 1800Z
Wanted items: 1
Alert specifics: Unscheduled Maintenance
Airworthiness Directive (AD): Not specified
Service Bulletin (SB): Not specified
Check: Not specified
ATA 100 CHAPTERS: 29Hydraulic Power
Short fault name: Hydraulic system A pump leak
Error / fault indications: HYD SYS A LO QTY indication on overhead panel. Engine-driven pump case drain leaking at the left engine accessory gearbox.
Troubleshooting status: Troubleshooting Complete - All required Items listed
TSM/FIM reference: Not specified
Roles and responsibilities: Southwest MCC sources the pump and releases the aircraft. Line hydraulics technician removes and installs the pump and performs leak checks. Courier delivers to the Gate 12 ramp.

ITEMS

Items in this alert

1 item

Parts & Rotables · WANTED

65B05998-16 - Engine-driven hydraulic pump, system A, left engine

Item Id: PD9DR

Serviceable engine-driven hydraulic pump for CFM56-7B, system A, with no case drain leakage on shop test. Preserved for installation.

Aircraft / Family: Boeing
ATA 100 CHAPTERS: 29Hydraulic Power
Required: 23OCT26 1400Z
Quantity: 1

Added to platform: 22OCT26 2315Z

DetailsClose

ITEM WORKFLOW

Item basics

Item Type: Parts & Rotables
Wanted / Available: Wanted
Item Title: Engine-driven hydraulic pump, system A, left engine
Sales Copy: Not specified

ITEM DETAILS

Technical specifications

P/N / IPC REF: 65B05998-16
ALT P/Ns: 65B05998-14
Description: Serviceable engine-driven hydraulic pump for CFM56-7B, system A, with no case drain leakage on shop test. Preserved for installation.
Rev or Version: Rev N
Quantity: 1
ACCEPTABLE MANUFACTURER(s): Eaton Aerospace
Manufacturer Type(s) Considered: OEM
Trace Required: OEM trace
Required Onsite D/T Z: 2026-10-23 14:00Z
Onsite Location Type: Hangar / Maintenance Facility
ATA 100 CHAPTERS: 29Hydraulic Power
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
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

22OCT26 2314Z

Aircraft model

Boeing 737-700

Aircraft series

Not specified

Engine model

CFM56-7B

ICAO location

KDAL

Impact type

Revenue PAX

MX window opens

22OCT26 2313Z

RTS target

24OCT26 1800Z

Wanted items

Alert specifics

Unscheduled Maintenance

Airworthiness Directive (AD)

Not specified

Service Bulletin (SB)

Not specified

Check

Not specified

ATA 100 CHAPTERS

29Hydraulic Power

Short fault name

Hydraulic system A pump leak

Error / fault indications

HYD SYS A LO QTY indication on overhead panel. Engine-driven pump case drain leaking at the left engine accessory gearbox.

Troubleshooting status

Troubleshooting Complete - All required Items listed

TSM/FIM reference

Not specified

Roles and responsibilities

Southwest MCC sources the pump and releases the aircraft. Line hydraulics technician removes and installs the pump and performs leak checks. Courier delivers to the Gate 12 ramp.