# SDR SWAA2021081104871

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 9, 2021
- Submitted: August 11, 2021
- Operation: Air carrier
- Aircraft: [N7876A](https://openairdocs.org/aircraft/N7876A), registered now
- Make and model: Boeing 737-7Q8
- Registry model: [Boeing 737-7Q8](https://openairdocs.org/model/boeing-737-7q8) (OpenAirDocs)
- Aircraft serial: 29355
- Aircraft time: 48,477 hours, 26,053 cycles
- System (JASC): [2761 · Drag Control Actuator](https://openairdocs.org/jasc/2761)
- Part: Actuator
- Part number: 251A12403
- Part serial: 13108
- Condition: Low
- Location: Rt Nr5 Spoiler
- Stage of operation: DE
- How discovered: O
- Nature of condition: J
- Precautionary procedure: B
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2021081104871

## Discrepancy

DURING DESCENT INTO HRL; THE ENG 2 LOW PRESS LIGHT ILLUMINATED. ABOUT 30 SECONDS LATER THE ELEC 1 LOW PRESS LIGHT ILLUMINATED ON THE B SIDE. FOLLOWED QRH; LANDED FLAPS 15 USING ALT FLAPS SWITCH.  NORMAL LANDING AND SHORT TAXI TO THE GATE. / [01] SERVICED HYD FLUID B SYSTEM IAW MM 12-12-00 ( B SYSTEM AT QTY AT REFILL.) REMOVED & REPLACED BOTH EDP AND ELECTRIC CASE DRAIN FILTERS REF AMM 29-11-51. ENG CASE DRAIN FILTERS REF. B 29-11-41. R & RD # 5 SPOILER ACTUATED IAW MM 27-61-11 # 5 SPOILER OPS CK D LEAK CKD OK. OPERATED ALL HYD. SYSTEMS AFTER REPLACING #1 ENG. CASE DRAIN FILTER IAW MM 29-11-51 AND B HYDRONIC CASE DRAIN FILTER IAW MM 29-11 -41 . ALL HYD. SYSTEM CKD OK.

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