I think the LUPA93 is looking at page 16 of a copy or extract (not well proof-read) of
Flight Operations Briefing Notes
Supplementary Techniques Handling
Engine Malfunctions.
I a copy I've looked at, there is a strange character gap in the Portable Document Format, giving the following (together with error message) when copied ...
Engine damage can be suspected if some of the following symptoms are observed:
• Rapid increase of EGT above the red line
• Import
• Abnormal oil pressure/temperature
• Loud noise • Fumes or burning smell in the cabin.
Whilst the page I see reads ...
Engine damage can be suspected if some of the following symptoms are observed:
• Rapid increase of EGT above the red line
• Important mismatch of rotor speeds (N1 vs. N2 or N3) or absence of rotation
• Abnormal oil pressure/temperature
• Loud noise • Fumes or burning smell in the cabin.
Try
http://www.skybrary.aero/bookshelf/books/193.pdf