# SDR DHL2003746014

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 18, 2003
- Submitted: November 20, 2003
- Operation: Air carrier
- Aircraft: N746DH
- Make and model: Boeing 727224
- Aircraft serial: 22252
- System (JASC): [3444 · Ground Proximity System](https://openairdocs.org/jasc/3444)
- Part: Switch
- Condition: Corroded
- Location: Gpws
- Stage of operation: TO
- How discovered: O
- Nature of condition: J
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DHL2003746014

## Discrepancy

WINDSHEAR/GPWS INOPERATIVE.  LIGHT ILLUMINATED DURING TAKE-OFF ROLL. RTO CONDUCTED WINDSHEAR IN AREA. A/C WEIGHT 154,200 LBS., OAT 19 DEGREES C., PA 280, & BRAKE ENERGY ZONE CAUTION.  TRANSFERRED TO DMI 14774 MEL 34-29 CAT. (A) PLACARD INSTALLED.   INSPECTED BRAKES IAW MM, NO DEFECTS NOTED.  SUSPECT GPWS COMPUTER. NO STOCK.  SWAPPED GPWS COMPUTER & RADIO ALTIMETER, NO HELP.  ORIGINAL GPWS & RADIO ALTIMETER BOXES REINSTALLED.  REMOVED INSTRUMENT PANEL ON F/O'S FORWARD LT SIDE. FOUND GPWS TEST/INHIBIT SWITCH CORRODED. PARTS ON ORDER. REINSTALLED & PERFORMED PITOT-STATIC LEAK CK IAW MM, NO LEAKS NOTED. REPLACED F/O'S GPWS KORRY LIGHT, GPWS NOW OPS CKS GOOD PER MM. THIS CLEARS DMI 14774.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.