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A Q400 captain reports he missed a call from ATC in cruise flight due to the first officer's VHF-2 comm causing radio bleed-over interference and interrupting ATC communications on captain's VHF-1 audio. Reporter alleged that maintenance control continues to sign-off pilot write-ups for the ATC interference as 'minimal'; citing radio manufacturer's service letter DHC8-400-SL-23-008.
| Attributes | |
| ACN | 946176 |
| Time | |
| Date | 201104 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | Q400 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Component | |
| Aircraft Component | Air/Ground Communication |
| Person 1 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Deviation - Procedural Published Material / Policy Deviation - Procedural Maintenance Deviation - Procedural FAR |
Narrative:
On flight from ZZZ to ZZZ1; when the first officer called ZZZ1 operations on VHF comm # 2; using a discrete frequency; I could hear him as clear as other conversations on a different frequency on VHF comm # 1. At the time; ATC was talking and I was unable to hear who and what they were communicating. Upon arrival into ZZZ1; I duplicated the problem so local maintenance could hear the [radio] bleedover. His [mechanic's] response was 'yeah that's excessive bleedover'. I told him that if maintenance control was planning to sign-off this discrepancy with [bombardier] service letter dhc-8-400-SL-23-008; dated october 2009; I would refuse the Q-400 as this was a safety issue.later that day; the chief pilot's office called to 'follow up' as to why I refused the aircraft. This problem is a over two year problem and still to my knowledge has not been remedied.
Original NASA ASRS Text
Title: A Q400 Captain reports he missed a call from ATC in cruise flight due to the First Officer's VHF-2 comm causing radio bleed-over interference and interrupting ATC communications on Captain's VHF-1 audio. Reporter alleged that Maintenance Control continues to sign-off pilot write-ups for the ATC interference as 'minimal'; citing radio Manufacturer's Service Letter DHC8-400-SL-23-008.
Narrative: On flight from ZZZ to ZZZ1; when the First Officer called ZZZ1 Operations on VHF Comm # 2; using a discrete frequency; I could hear him as clear as other conversations on a different frequency on VHF Comm # 1. At the time; ATC was talking and I was unable to hear who and what they were communicating. Upon arrival into ZZZ1; I duplicated the problem so local Maintenance could hear the [radio] bleedover. His [Mechanic's] response was 'yeah that's excessive bleedover'. I told him that if Maintenance Control was planning to sign-off this discrepancy with [Bombardier] Service Letter DHC-8-400-SL-23-008; dated October 2009; I would refuse the Q-400 as this was a safety issue.Later that day; the Chief Pilot's office called to 'follow up' as to why I refused the aircraft. This problem is a over two year problem and still to my knowledge has not been remedied.
Data retrieved from NASA's ASRS site as of April 2012 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.