🔧 A 2024 service letter (ref. HHI-2024-021) highlighted cracking in certain H25/33 cylinder heads after 12,000 hours. Following the NDT inspection schedule prevented 3 major failures in our fleet.
⚠️ Service Letter HHI-2023-008 addressed a high-pressure fuel pipe fatigue issue on older H32/40 engines. Acting on it eliminated a serious fire risk. himsen service letters
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📜 ABS, DNV, and Lloyd’s now explicitly ask for service letter implementation during surveys. Ignoring them can void warranties or cause class objections. 🔧 A 2024 service letter (ref