# SDR CALA2026040215039

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 31, 2026
- Submitted: April 2, 2026
- Operation: Air carrier
- Aircraft: [N37365](https://openairdocs.org/aircraft/N37365), registered now
- Make and model: Boeing 737-8
- Registry model: [Boeing 737-8](https://openairdocs.org/model/boeing-737-8) (OpenAirDocs)
- Aircraft serial: 67630
- Aircraft time: 3,932 hours, 1,291 cycles
- Engine: Cfmint LEAP1B28
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Sense Line
- Condition: Contaminated
- Location: Nr 2 Engine
- Stage of operation: CR
- How discovered: O
- Nature of condition: C
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026040215039

## Discrepancy

ENGINE ANTI-ICE LIGHT IS ON,  AHM REPORTING ENGINE-2 INTERMEDIATE DUCT PRESSURE SENSOR SIGNAL IS OUT OF RANGE DETECTED BY: INTEGRATED AIR SYSTEMS CONTROLLER (IASC)-RIGHT ADD FAULT: 36-21011 MEL COMPLIED WITH BY GATE TECHNICIANS.  T/S PER FIM TASK 36-21 TASK 802 FOUND FAULT TO HAPPEN IN CRUISE REQUIRES T/S PER STEP E REACTIVATED THE NR 2 HPSOV FOR T/S. STICKER NOT PULLED. WILL NEED TO BE DEACTIVATED AGAIN IF FAULT NOT CLEARED. PERFORMED FIM TASK 36-21 TASK 802, STEP E, AS CONTAINED IN FIM PERFORMED INTERMEDIATE MANIFOLD PRESSURE (PI) SENSOR SENSE LINE - CLEANING, FOUND WATER IN THE SENSE LINE. CLEANED WATER IN SENSE LINE IN REF TO AMM 36-11-05-100-801. PERFORMED ELECTRICAL LRU REPLACEMENT TEST 36-00-00-710-801, TEST PASSED. NO FURTHER DISCREPANCIES NOTED. PERFORMED ENGINE RUN IN REF TO AMM 71-00-00-790-804-G00. NO DISCREPANCIES NOTED, BLEED PRESSURE WAS WITHIN RANGE. AFTER FIXING FAULT 36-21011 ENG ANTI ICE FAULT WENT AWAY, TSM 30-21 TASK 809 STATES THAT AN INTERMEDIATE DUCT PRESSURE SENSOR FAILURE WHERE THE IASC NO LONGER RECEIVES INPUT FROM THE SENSOR CAN CAUSE AN ENG ANTI ICE FAULT LIGHT TO APPEAR. NO FURTHER DISCREPANCIES NOTED.

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