# SDR DL72S980436

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 22, 1998
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N534DA](https://openairdocs.org/aircraft/N534DA), registered now
- Make and model: Boeing 727232
- Aircraft serial: 22047
- System (JASC): [3444 · Ground Proximity System](https://openairdocs.org/jasc/3444)
- Part: Radio Alt
- Condition: Malfunctioned
- Location: Capts Side
- Component: 5224825008
- Stage of operation: LD
- Nature of condition: B
- Precautionary procedure: H
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DL72S980436

## Discrepancy

RADIO ALT (CAPTS) SHOWED 2000 AGL WHILE 10000 MSL.  THIS WAS FOLLOWED BY A GPWAS PULL UP WARNING AND THEN ELECTRICAL SMOKE IN THE COCKPIT.  PULLED CAPTS R/A CB SMOKE DISSIPATED AFTER RUNNING CK LIST LANDED NORMALLY.  REPLACED CAPTS R/A IND AND NR 1 R/A TRANSCVR RAN BOTH PACKS AND GND OPS CKS OK.

---
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.